The Mariana Trench is the depth of the foundation. The deepest places on earth
Do you think the deepest places on the planet can reach 10 kilometers? Let's figure it out together. Given the fact that the core of the Earth is about six kilometers from the surface, they probably cannot. However, our world is a very amazing place. We bring to your attention the Top 10 most unique depressions, pits, wells and other deep zones that amaze with their history and dimensions. We will consider not only land, but also water expanses. Let's talk about the origin and significance of artificially made pits. Let's find out how close a person can get to the core of the planet!
Top 10 deepest places in the world
10
In England, there is the most amazing well in the world called Woodingdean. Construction of this facility began in 1858. At that time, no one planned to build such a huge pit. Initially, the well was planned to be dug only 122 meters. However, after reaching the goal, the craftsmen failed to find water. As a result, the specialists of that time continued their work and reached the bowels at a depth of 392 meters. It is difficult to say how many victims this structure cost. Every day people had to go down fragile stairs.
The deepest mine on our planet, which is also known for the work of a unique excavator. The depth is 370 meters. At the same time, with the help of the world's largest equipment, about twenty-five tons of brown coal are lifted daily. This is not all - it turns out that there is a Sophienhöhe hill near the quarry, which is the largest artificial hill on the planet. With its help, you can see the entire mine, it rises 300 meters above the sea. So Sophienhöhe is almost as big as Tagebau Hambach is deep.
In Mexico, there is the largest karst funnel, whose name is El Zakaton, which attracts drivers from all over the world. It is as attractive as it is dangerous, because the depth is 339 meters. It was formed during the Pleistocene, about 12 million years ago. The huge depression is completely filled with water. According to official data, only one robot has managed to reach the bottom of the funnel to date. Naturally, the pressure is beyond comprehension.
Baikal is the property of the Russian Federation, the depth of which reaches 1642 meters. You might be interested to get acquainted with other dimensional lakes on our planet! As for Baikal, it should be noted that people have been actively trying to conquer the depth of this fresh water body since 1977. For the first time, the goal was achieved with the help of the bathyscaphe "Mir", submerged to a maximum depth of 1640 meters. The event took place in 2009! Baikal is also included in our rating of the largest lakes in Russia and takes second place there.
More than 2 km.
In Abkhazia there is a cave called Krubera. The locals also call it the Crow's Cave. So, its depth is more than 2 kilometers. One of the deepest places on land was discovered in 1960 by a certain Alexander Kruber, after whom, in fact, the cave got its name. To this day, the unique place delights a lot of archaeologists and researchers from different parts of our planet. However, as well as brave tourists.
In Canada, namely Ontario, there is a zinc mine called Kidd Mine. The depth of the amazing lowland is 2733 meters above sea level. Such mines cannot be found, not only because of their size, but also because of the minerals that are regularly managed to be removed from the expanse of the quarry. It is located in the northern part of the state, closest to the center of the planet. It should be noted that underground it expands significantly. At the same time, deepening of the mine is planned at the end of this year!
The deepest point in the Arctic Ocean
Unfortunately there is no photo.
The Litke Gutter is perhaps not a very hospitable place, the depth of which is about 5500 m. It is located about 350 kilometers from the Arctic desert, near the island of Svalbard. In the Arctic Ocean, he cannot find competitors in terms of depth. For the first time, the Litke Gutter was discovered by members of the expedition of the ship "Fedor Litke" back in 1955. In honor of this mission, as well as the name of the leader, the depression received its name.
Milwaukee is the deepest point in the ocean, located in the expanse of Atlantic waters. Just imagine that its depth is 8740 m. That is, the distance is greater than to the core of the Earth. Here is the answer to the main question of this text. But that's not all. It was first recorded by the Milwaukee (America). Located on the territory of the Caribbean Sea. For a long time, geologists have tried to understand where the fault occurs, but to this day there is no exact answer. Most likely, it was formed as a result of a volcanic eruption due to a powerful tsunami. If you're interested, you can find out what they are!
Despite the fact that the oceans are closer to us than the outer planets of the solar system, people have explored only five percent of the ocean floor, which remains one of the greatest mysteries of our planet.
The deepest part of the ocean - the Mariana Trench or the Mariana Trench is one of the most famous places, about which we still do not know very much.
With water pressure that is a thousand times greater than at sea level, diving into this place is akin to suicide.
But thanks to modern technology and a few brave souls who, risking their lives, went down there, we learned a lot of interesting things about this amazing place.
Mariana Trench on the map. Where is she?
The Mariana Trench or the Mariana Trench is located in the western Pacific Ocean to the east (about 200 km) of the 15 Mariana Islands near Guam. It is a crescent-shaped trench in the earth's crust, about 2550 km long and 69 km wide on average.
The coordinates of the Mariana Trench are 11°22′ north latitude and 142°35′ east longitude.
Depth of the Mariana Trench
According to the latest research in 2011, the depth of the deepest point of the Mariana Trench is about 10,994 meters ± 40 meters. For comparison, the height of the highest peak in the world - Everest is 8,848 meters. This means that if Everest were in the Mariana Trench, it would be covered by another 2.1 km of water.
See also: The deepest places on Earth
Here are other interesting facts about what you can meet along the way and at the very bottom of the Mariana Trench.
Temperature at the bottom of the Mariana Trench
1. Very hot water
Going down to such a depth, we expect that it will be very cold there. The temperature here reaches just above zero, varying from 1 to 4 degrees Celsius.
However, at a depth of about 1.6 km from the surface of the Pacific Ocean, there are hydrothermal vents called "black smokers". They shoot water that heats up to 450 degrees Celsius.
This water is rich in minerals that help support life in the area. Despite the temperature of the water, which is hundreds of degrees above the boiling point, it does not boil here due to the incredible pressure, 155 times higher than on the surface.
Inhabitants of the Mariana Trench
2 Giant Toxic Amoebas
A few years ago, at the bottom of the Mariana Trench, giant 10-centimeter amoebas called xenophyophores were discovered.
These single-celled organisms probably got so big because of the environment they live in at a depth of 10.6 km. The cold temperature, high pressure and lack of sunlight most likely contributed to the fact that these amoeba acquired huge sizes.
In addition, xenophyophores have incredible abilities. They are resistant to many elements and chemicals, including uranium, mercury and lead, which would kill other animals and people.
3. Clams
The strong water pressure in the Mariana Trench does not give any animal with a shell or bones a chance to survive. However, in 2012, shellfish were discovered in a trough near serpentine hydrothermal vents. Serpentine contains hydrogen and methane, which allows living organisms to form.
How the molluscs retained their shell under such pressure remains unknown.
In addition, hydrothermal vents release another gas, hydrogen sulfide, which is deadly to shellfish. However, they learned to bind the sulfur compound into a safe protein, which allowed the population of these mollusks to survive.
LIFE IN PUT DARKNESS
In the course of further research with the help of unmanned deep-sea vehicles, it turned out that at the bottom of the depression, despite the terrifying water pressure, a wide variety of species of living organisms live. Giant 10-centimeter amoebas are xenophyophores, which under normal, terrestrial conditions can only be seen with a microscope, amazing two-meter worms, no less huge starfish, mutant octopuses and, of course, fish.
The latter amaze with their terrifying appearance. Their distinctive feature is a huge mouth and many teeth. Many open their jaws so wide that even a small predator can swallow an animal larger than itself whole.
There are also completely unusual creatures that reach a two-meter size with a soft jelly-like body, which have no analogues in nature.
It would seem that at such a depth the temperature should be at the level of the Antarctic. However, the Challenger Deep contains hydrothermal vents called "black smokers". They constantly heat the water and thereby maintain the overall temperature in the cavity at 1-4 degrees Celsius.
The inhabitants of the Mariana Trench live in pitch darkness, some of them are blind, others have huge telescopic eyes that catch the slightest glare of light. Some individuals have "lanterns" on their heads, emitting a different color.
There are fish in the body of which a luminous liquid accumulates. When they feel danger, they splash this liquid towards the enemy and hide behind this "curtain of light." The appearance of such animals is very unusual for our perception, it can cause disgust and even inspire a sense of fear.
But it is obvious that not all the mysteries of the Mariana Trench have yet been solved. Some strange animals of truly incredible sizes live in the depths!
THE LIZARD TRIED TO BUTTON THE BATHISCAFE LIKE A NUT
Sometimes on the shore, not far from the Mariana Trench, people find the bodies of dead 40-meter monsters. Giant teeth were also found in those places. Scientists have proven that they belong to a multi-ton prehistoric megalodon shark, whose mouth span reached two meters.
These sharks were thought to have died out about three million years ago, but the teeth found are much younger. So did the ancient monsters really disappear?
In 2003, another sensational study of the Mariana Trench was published in the United States. Scientists have loaded an unmanned platform equipped with searchlights, sensitive video systems and microphones in the deepest part of the world's oceans.
The platform descended on 6 steel cables of an inch section. At first, the technique did not give any unusual information. But a few hours after the dive, silhouettes of strange large objects (at least 12-16 meters) began to flicker on the monitor screens in the light of powerful searchlights, and at that time the microphones transmitted sharp sounds to the recording devices - the grinding of iron and deaf, uniform blows on metal.
When the platform was raised (never lowered to the bottom due to incomprehensible interference that prevented the descent), it was found that the powerful steel structures were bent, and the steel cables seemed to be sawn. A little more - and the platform would forever remain the "Challenger Abyss".
Earlier, something similar happened to the German apparatus "Hyfish". Having descended to a depth of 7 kilometers, he suddenly refused to emerge. To find out what the problem was, the researchers turned on the infrared camera.
What they saw in the next few seconds seemed to them a collective hallucination: a huge prehistoric lizard, clinging its teeth to a bathyscaphe, tried to crack it like a nut.
Recovering from the shock, the scientists activated the so-called electric gun, and the monster, struck by a powerful discharge, hastened to retreat.
At the bottom of the Mariana Trench
4. Pure liquid carbon dioxide
The Champagne Hydrothermal Spring of the Mariana Trench, which lies outside the Okinawa Trench near Taiwan, is the only known underwater area where liquid carbon dioxide can be found. The spring, discovered in 2005, got its name from the bubbles that turned out to be carbon dioxide.
Many believe that these springs, called "white smokers" because of the lower temperature, may be the source of life. It was in the depths of the oceans with low temperatures and an abundance of chemicals and energy that life could originate.
If we had the opportunity to swim to the very depths of the Mariana Trench, we would feel that it is covered with a layer of viscous mucus. Sand, in its usual form, does not exist there.
The bottom of the depression mainly consists of crushed shells and plankton residues that have accumulated at the bottom of the depression for many years. Due to the incredible pressure of the water, almost everything there turns into fine greyish-yellow thick mud.
Mariana Trench
6. Liquid sulfur
The Daikoku Volcano, which is located at a depth of about 414 meters on the way to the Mariana Trench, is the source of one of the rarest phenomena on our planet. There is a lake of pure molten sulfur. The only place where liquid sulfur can be found is Jupiter's moon Io.
In this pit, called the "cauldron," the bubbling black emulsion boils at 187 degrees Celsius. Although scientists have not been able to explore this place in detail, it is possible that even more liquid sulfur is contained deeper. This may reveal the secret of the origin of life on Earth.
According to the Gaia hypothesis, our planet is one self-governing organism in which all living and non-living things are connected to support its life. If this hypothesis is correct, then a number of signals can be observed in the natural cycles and systems of the Earth. So the sulfur compounds created by organisms in the ocean must be stable enough in the water to allow them to pass into the air and back to land again.
At the end of 2011, four stone bridges were discovered in the Mariana Trench, which stretched from one end to the other for 69 km. They appear to have formed at the junction of the Pacific and Philippine tectonic plates.
One of the Dutton Ridge bridges, which was opened back in the 1980s, turned out to be incredibly high, like a small mountain. At its highest point, the ridge reaches 2.5 km above the "Challenger Deep".
Like many aspects of the Mariana Trench, the purpose of these bridges remains unclear. However, the very fact that these formations were discovered in one of the most mysterious and unexplored places is amazing.
8James Cameron's dive into the Mariana Trench
Since the discovery of the deepest part of the Mariana Trench, the Challenger Deep in 1875, only three people have been here. The first were American lieutenant Don Walsh and explorer Jacques Picard, who dived on January 23, 1960 on the Trieste.
After 52 years, another person ventured here - the famous film director James Cameron. So on March 26, 2012, Cameron went down to the bottom and took some photos.
In those places, rays of sunlight will never penetrate to get there, researchers, risking their lives, put a lot of effort and effort, mysterious creatures live there that look more like alien aliens than ocean inhabitants - all these are deep-sea trenches (troughs) World Ocean.
Geographic feature (value)
Ocean trenches are deep cracks on the ocean floor, the length of which reaches at least five thousand meters. They play an important role in shaping climatic conditions and climate in general.
The basins of the World Ocean act as the main absorbers of the most abundant carbon gas - CO2, which is the main component in the biochemical processes of the globe. Depressions are traps for organic matter, which is intensively processed by bacteria. Much more bacterial organisms are concentrated in the depressions than on the oceanic plains (up to 6000 meters), which were previously considered the main utilizers of organic matter. In addition, such kind of traps can act in a direction that is opposite to global warming, which helps maintain the planet's ecological system in a balanced state.
Characteristics of sea and ocean trenches
The basins of the marginal seas, which develop in oceanic conditions, are also referred to as oceanic cracks and faults. Sea trenches are deep faults that are located at the bottom of the seas, complete darkness and high pressure reign there. The most famous are the sea depressions that stretch along the eastern shores of Eurasia.
Oceanic depressions are the most common relief elements of the intermediate sector between the ocean and the continental part of the mainland. These long narrow depressions of the ocean floor are located on the outer part of the oceanic ridges of the continental arcs.
Deep sea basins of the oceans
The deepest faults are concentrated in the Pacific region and reach up to 11 km. The deepest place on earth is the Mariana Trench with a recorded depth of 11,022 meters. The length of the trench is 1500 km, the slopes are steep, and the bottom is flat (width from 1 to 5 km).
The deepest in the Indian Ocean is the Java Trench, 7,730 meters deep, over 4,000 kilometers long, and 10 to 50 kilometers wide. It is located near the island of Bali. The bottom of the depression is indented with ledges and underwater canyons, there are active volcanoes, and earthquakes occur.
The longest in the world is the Peru-Chile Trench, its depth reaches 6000 km. This depression is the widest fault in the World Ocean and is recognized as one of the 7 wonders of the world (more than 90 km wide).
The Aleutian Trench stretches from Alaska to Kamchatka with a depth of 7,700 m. A depression was formed during the collision of two Pacific and North American plates.
Mariana Trench interesting facts
(The contour of Mount Chomolungma (Everest) on the scheme of the Marina depression)
If the highest mountain in the world, Chomolungma (Everest), was in the Mariana Trench, then it would be covered with another 2 km of water.
There are thermal springs at a depth of about one and a half kilometers from the bottom of the Pacific Ocean, so the water warms up to 450 C.
Recently, giant amoeba (up to 10 cm) were discovered at the bottom of the Mariana Trench, which has such dimensions due to the environment in which they live.
The Mariana Trench is a fracture in the earth's crust located in the ocean. It is one of the famous objects in the world. We will find out where the Mariana Trench is located on the map and what it is known for.
What it is?
The Mariana Trench is an oceanic trench, or a break in the earth's crust, located under water. It got its name from the nearby Mariana Islands. In the world, this object is known as the deepest place. The depth of the Mariana Trench in meters is 10994. This is 2000 meters more than the highest mountain on the planet - Everest.
For the first time, the British learned about this depression in 1875 on the Challenger ship. At the same time, the first measurement of its depth was made, which amounted to 8367 meters.
How was the Mariana Trench formed?
It represents the boundary between two lithospheric plates. There is a break in the earth's crust, formed as a result of the movements of these plates. The depression is V-shaped and is 1,500 kilometers long.
Location
How to find the Mariana Trench on the world map? It is located in the Pacific Ocean, in its eastern part, between the Philippine and Mariana Islands. The coordinates of the deepest point of the depression are 11 degrees north latitude and 142 degrees east longitude.
Rice. 1. The Mariana Trench is located in the Pacific Ocean
Research
The enormous depth of the Mariana Trench determines the pressure at the bottom, which is 108.6 MPa. This is a thousand times more pressure on the surface of the Earth. Naturally, it is extremely difficult to conduct research in such conditions. However, the secrets and mysteries of the deepest place in the world attract many scientists.
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As already mentioned, the first studies were carried out in 1875. But the equipment of that time did not allow not only to sink to the bottom of the depression, but even to accurately measure its depth. The first dive was carried out in 1960 - then the Trieste bathyscaphe sank to a depth of 10915 meters. There are many interesting facts in this study, which, unfortunately, still do not have explanations.
The instruments recorded sounds reminiscent of the grinding of a saw on metal. With the help of monitors, vague shadows were visible, outlines resembling dragons or dinosaurs. The recording was carried out for an hour, then the scientists decided to urgently raise the bathyscaphe to the surface. When the apparatus was lifted, a lot of damage was found on the metal, which at that time was considered heavy-duty. A cable of enormous length and a width of 20 cm was half sawn. Who could have done this is still considered unknown.
Rice. 2. The bathyscaphe Trieste was immersed in the Mariana Trench
The German expedition "Highfish" also immersed its bathyscaphe in the Mariana Trench. However, they only reached a depth of 7 km and then encountered some difficulties. Attempts to remove the device were unsuccessful. Turning on the infrared cameras, the scientists saw a huge pangolin holding a bathyscaphe. Whether this was true, no one can say today.
The deepest place of the depression was recorded in 2011 by diving to the bottom of a special robot. He reached the mark of 10994 meters. This area was called the Challenger Deep.
Is there anyone who descended to the bottom of the Mariana Trench, except for robots and submersibles? Such dives were carried out by several people:
- Don Walsh and Jacques Picard - research scientists descended on the Trieste bathyscaphe in 1960 to a depth of 10915 meters;
- James Cameron, an American director, made a solo dive to the very bottom of the Challenger abyss, collecting many samples, photos and videos.
In January 2017, the well-known traveler Fyodor Konyukhov announced his desire to dive into the Mariana Trench.
Who lives at the bottom of the hollow
Despite the enormous depth and high pressure of the water column, the Mariana Trench is not uninhabited. Until recently, it was believed that life stops at a depth of 6000 m. and no animals are able to endure the enormous pressure. In addition, at the level of 2000 m, the passage of light stops and only darkness is located below.
Recent studies have found that even below 6000 m there is life. So, who lives at the bottom of the Mariana Trench:
- worms up to one and a half meters long;
- crustaceans;
- shellfish;
- octopuses;
- sea stars;
- many bacteria.
All these inhabitants have adapted to withstand pressure and darkness, therefore they have specific shapes and colors.
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Where is the deepest place on Earth? How far is it from the center of the earth? If you put Everest there, will it rise above the surface of the Earth?
Today we will deal with the deepest places, holes, wells, caves, wells in the world, natural and man-made.
Here are the famous Parisian catacombs - a network of winding underground tunnels and artificial caves under Paris. The total length, according to various sources, is from 187 to 300 kilometers. Since the end of the 18th century, the remains of almost six million people have been buried in the catacombs. 
40 meters
The Hotel Terme Millepini in Italy has adopted this bold strategy by digging a 40-metre-deep tunnel for divers and scuba divers. This is the Y-40 pool. The most interesting point of the deepest pool Y-40 is that it is filled with thermal water and has a wonderful temperature of 33 degrees Celsius. 
105.5 meters
This is the depth of the Arsenalnaya Kyiv metro station, which is located on the Svyatoshynsko-Brovarskaya line between the Khreshchatyk and Dnepr stations. This is the deepest metro station in the world. 
122 meters
The roots of the tree can penetrate to such a depth. The tree with the deepest roots is a wild ficus growing in Echo Caves near Ohrigstad, South Africa. This tree is native to South Africa. Its roots go to a depth of almost 122 meters. 
230 meters
The deepest river This is the Congo, a river in Central Africa. In the lower reaches, the Congo breaks through the South Guinea Upland in a deep narrow (in some places no more than 300 meters) gorge, forming the Livingston waterfalls (total fall of 270 meters), the depths in this section are 230 meters or more, which makes the Congo the deepest river in the world . 
240 meters
This is a railway tunnel Seikan Tunnel in Japan with a length of 53.85 km. The tunnel descends to a depth of about 240 meters, 100 meters below the seabed. It is the deepest under the seabed and the second longest (after the Gotthard Base Tunnel) railway tunnel in the world. 
287 meters
Even deeper is the Eiksund Road Tunnel, laid along the bottom of the Sturfjord in the Norwegian province of Møre og Romsdal, connecting the cities of Eiksund and Rjanes. Construction began in 2003, the opening ceremony took place on February 17, 2008, and full-fledged traffic was opened on February 23, 2008. With a length of 7765 m, the tunnel goes to a depth of 287 m below sea level - this is the deepest tunnel in the world. The slope of the roadway reaches 9.6% 
382 meters
Woodingdean is an eastern suburb of Brighton and Hove located in East Sussex, England. It is notable for the fact that on its territory there is the deepest well in the world, dug by hand between 1858-1862. The depth of the well is 392 meters.
Of course, it does not look so picturesque, this is just an illustration. 
603 meters
Vertigo Cave Vrtoglavica in the Julian Alps. It is located on the territory of Slovenia, near the border with Italy). The cave was discovered by a joint Slovenian-Italian group of speleologists in 1996. The deepest karst well in the world is located in the cave, its depth is 603 meters.
The North Tower of the World Trade Center in New York can easily fit here (its height is 417 m, and taking into account the antenna installed on the roof - 526.3 m).
If you accidentally fall into this hole, you can reach the bottom in 11 seconds. 
700 meters
33 miners found themselves under the rubble as a result of the collapse of the San Jose mine on August 5, 2010. They spent more than 2 months in captivity at a depth of 700 meters and were considered dead for almost 3 weeks. As a result of 40 days of work, a well was drilled to save the Chilean miners. 
970 meters
This is the largest dug hole in the Earth, from the bottom of which you can still see the sky. The Bingham Canyon Quarry in Utah is one of the world's largest man-made formations. After more than 100 years of mining, a large crater 970 meters deep and 4 km wide was formed. This unique canyon was designated a National Historic Landmark in 1966.
This quarry will fit the entire Burj Khalifa - the tallest building in the world ever created, whose height is 828 meters. And it will not just fit, but more than 140 meters will remain from its “crown” to the surface. 
On April 10, 2013, a giant block of earth broke off and rushed into a huge pit in the artificial Bingham Canyon in Utah. Approximately 65 to 70 million cubic meters of earth rattled against the walls of the mine, reaching speeds of up to 150 kilometers per hour. The event was so powerful that it shook the earth - seismic sensors worked, recording an earthquake. The intensity was measured as 2.5 points on the Richter scale. 
1642 meters
Baikal is the deepest lake on Earth. The current value of the maximum depth of the lake is 1642 m. 
1857 meters
The Grand Canyon is one of the deepest canyons in the world. Located on the Colorado Plateau, Arizona, USA. Depth - more than 1800 m. 
2199 meters
So we got to the deepest cave in the world. This is the Krubera (Voronya) cave - the only known cave in the world deeper than 2 kilometers. The main entrance to the cave is located at an altitude of about 2250 m above sea level. 
3132 meters
To date, the deepest is the Moab Khotsong mine in South Africa, located southwest of Johannesburg. Its depth is 3 kilometers. The elevator takes 4.5 minutes to the very bottom, but you can speed up the process: if a person accidentally falls here, then the flight to the bottom will take him 25 seconds. 
3600 meters
A living organism was found at such a depth. About a hundred years ago, the English scientist Edward Forbes claimed that there were no living creatures deeper than 500 meters. But in 2011, nematode worms Halicephalobus mephisto were found in a gold mine in South Africa. The second name for these 0.5 mm creatures is "the worm from hell." 
4500 meters
The deepest mines in the world are located in South Africa: Tau Tona, Witwatersrand - a depth of more than 4500 m, Western Deep Levels Mine (Western deep mine) - 3900 m (De Beers company), Mponeng - 3800 m. have to work in extreme conditions. The heat reaches up to 60 ° C, and at such a depth there is a constant danger of water breakthrough and explosions. These mines produce gold. The journey here takes the miners about 1 hour.
By the way, the Witwatersrand mine produces from 25 to 50% of the gold mined in the world. Mining is also carried out from the deepest mine in the world, Tau-Tona - its depth is more than 4.5 km, the temperature in the workings reaches 52 degrees.
A piece of gold-bearing ore mined at the deposit: 
We move on. The next one will be very deep.
10994 meters
The Mariana Trench (or the Mariana Trench) is an oceanic deep-sea trench in the western Pacific Ocean, the deepest known on Earth. It is named after the nearby Mariana Islands. The deepest point of the Mariana Trench is the Challenger Deep. According to measurements in 2011, its depth is 10,994 m below sea level.
It's very deep. If Everest 8848 meters high could be placed here, then more than 2 km would still be left from its top to the surface.
Yes, there is a place on Earth about which we know much less than about distant space - the mysterious bottom of the ocean. It is believed that world science has not even really begun to study it yet ...
At a depth of 11 kilometers. At the bottom, the water pressure reaches 108.6 MPa, which is approximately 1072 times higher than the normal atmospheric pressure at the level of the World Ocean. 
12262 meters
We have reached the deepest well in the world. This is the Kola superdeep well. It is located in the Murmansk region, 10 kilometers west of the city of Zapolyarny. Unlike other ultra-deep wells that were drilled for oil production or exploration, SG-3 was drilled exclusively for research purposes in the place where the Mohorovichic boundary comes close to the Earth's surface.
At a depth of five kilometers, the ambient temperature exceeded 70 ° C, at seven - 120 ° C, and at a depth of 12 kilometers, the sensors recorded 220 ° C.
Kola superdeep well, 2007: 
The Kola Superdeep was the source of the urban legend about the “well to hell”. This urban legend has been circulating the internet since at least 1997. For the first time in English, the legend was announced in 1989 on the air of the American television company Trinity Broadcasting Network, which took the story from a Finnish newspaper report published on April Fool's Day. According to this legend, in the very thickness of the earth, at a depth of 12,000 meters, the microphones of scientists recorded cries and groans. The tabloid newspapers write that it is "a voice from the underworld." The Kola super-deep well began to be called the "road to hell" - each new kilometer drilled brought misfortune to the country.
If something is dropped into this hole, 50 seconds will pass before this “something” falls to the bottom.
This is it, the well itself (welded), August 2012: 
12376 meters
Well Z-44 Chayvo, which was drilled in Russia on the shelf of Sakhalin Island, is considered the deepest oil well in the world. It goes to a depth of about 13 kilometers - this depth is comparable to the height of 14.5 skyscrapers Burj Khalifa, which is still the tallest in the world. This is the deepest hole mankind has been able to drill. 
At the moment, this is the deepest place in the world. And it is only at a depth of about 12.4 km. Is it a lot? Recall that the average distance to the center of the Earth will be 6371.3 kilometers ...
