With progressive science, many secrets of the Earth have already been discovered. We have already reached the surface of the Moon and explored other planets. But there are still the most mysterious places on Earth that have yet to be explored. Here is a list of the best undiscovered places on Earth.
Unfavorable conditions and destructive natural forces make some places the least explored. On the other hand, it is protection. Because this will help preserve even a few places in their original form.
The most mysterious places on earth
The endless island of Greenland
Greenland is the largest island in the world. It is also the northernmost country in the world. 80 percent of Greenland is covered in ice. This is the exact reason why Greenland remains the least explored and least populated. By 2016, living on this big island only 56,250 people.
Some of the ice sheets on this island are 3,200 meters thick. The island also features glaciers, deep rivers, ice, sun, hot springs and the Northern Lights. In case of transport, there are no roads or railway networks in Greenland, and to get through you can choose a snowmobile, boat, plane or helicopter.
Mariana Trench in the Western Pacific Ocean
The Mariana Trench is the deepest part on Earth, located in the western part Pacific Ocean. This deep, crescent-shaped trench was formed in the ocean millions of years ago. Considering the depth and high blood pressure in the Mariana Trench, this dangerous place to explore it.
So far, there have been only two successful manned descents into the depression. The first descent was made by Swiss oceanographer Jacques Piccard and Lieutenant Don Walsh in 1960. The second mission was carried out by famous Hollywood director James Cameroon in 2012.
The Mariana Trench is home to many rare minerals and ocean creatures. The floor of the Mariana Trench contains fossils.
Unclimbed peak Kankar Punsum in Bhutan
Kankar Punsum is the highest unclimbed mountain in the world. It is located in Bhutan. Even at the most high peak, Mount Everest has already been successfully climbed by many people. But no one has ever managed to reach the top of Kankar Punsum.
In total, four expeditions took place there. In 1983, 1985, 1986 and 1994 respectively. But all these expeditions were unsuccessful due to heavy snowfall and unstable conditions. in 2004, the Bhutanese government restricted mountaineering in Kankar Poonsum due to spiritual beliefs. So, the mountain became unclimbed and unknown. 
Lifeless Deserts
This known fact that deserts are the least explored due to poor weather conditions. The Sahara is the largest desert in the world. It covers more than 200 million square miles. The Sahara is located in Africa and is the largest and hottest desert in the world.
Deserts receive very little rainfall per year. Dramatic temperature fluctuations are also very common in deserts. The days can be quite hot. But the nights are very cold. This makes for very harsh conditions for animals, plants and humans. Although, some animals and plants can be found in deserts. Such animals are highly technologically advanced to live in harsh conditions. 
Unknown Deep Caves
There are a large number of unexplored caves located throughout the world. Too difficult to explore many caves due to unbearable weather conditions and sharp rocks
Also some underwater caves in the world are unexplored, even there is no marine life there due to the deadly conditions. Flooded, Yucatan Cenotes, network caves in Mexico is best example for this. The Crystal Caves and Snow Caves have become too dangerous for expeditions due to unprecedented changes. 
Boundless Amazon, South America
With a total area of 2.5 million square kilometers, the Amazon contains half tropical forests on Earth. The Amazon's rich biodiversity and presence of many rare species make it a popular destination for scientific expeditions. But the mysterious Amazon is hazardous environment habitat.
There is no dry season in the Amazon rainforest, it's raining throughout the year. Heavy rain in the Amazon rainforest begins in February. This leads to a sharp rise in the water level in the river and severe flooding. In such conditions, transport across rivers also became too dangerous due to extreme river currents.
The Amazon is also dangerous because of deadly animals such as jaguars, rattlesnakes, Brazilian wandering spiders, mosquitoes, poisonous frogs, piranhas, black caimans and anacondas, which can even harm humans. In addition, lack of access to healthy eating And clean water makes an expedition into the Amazon rainforest too dangerous. 
Icy Antarctica
Antarctica is the coldest place on the surface of the Earth. It is a dry, cold, windy continent. The climate in Antarctica changes dramatically from -10 degrees Celsius to -30 degrees Celsius at in good condition. The lowest recorded temperature in Antarctica is -89 degrees. This harsh climate of Antarctica itself makes hazardous conditions study.
The maximum wind speed recorded in Antarctica was 200 mph in 1972. The ice in Antarctica is 2 miles thick. It reflects the unbearable climate conditions on the continent. Heavy snow, glaciers, crevasses and other potential hazards in Antarctica. Therefore, this place is very difficult to explore. 
Tepui is the only place on Earth where no human has set foot. What animals live on Tepuis, what plants grow on Tepuis - all this is a dark forest for us, since people have visited only some Tepuis. And most of Tepui is absolutely unexplored!
They become not only a source of legends and scary stories, but also a subject of creativity for science fiction artists.
Tepui, or tepui, are table mountains located in the Guiana Highlands in South America, mostly in Venezuela. Among the most famous tepuis are Autana, Auyantepui and Mount Roraima. Many tepuis are located in the Venezuelan Canaima National Park, which has the status of a site World Heritage UNESCO.
The word "tepui" in the language of the Pemon Indians inhabiting the Gran Sabana region means "house of the gods." Tepuis for the most part stand isolated from each other, rising above the jungle with inaccessible cliffs, which makes them carriers of unique sets of endemic plants and animals.
Tepuis are the remains of a vast plateau that once extended from the coast Atlantic Ocean to the borders of the Amazon, Orinoco and Rio Negro river basins.
The plateau formed on the site of the lake about 200 million years ago, when South America and Africa still formed a single continent. The plateau consisted of sandstone and was located on a granite base; Over time, erosion turned the plateau into several monadnocks, from which tepuis were formed, covered with erosion-resistant rocks. 
Typically, tepuis consist of a single block of Precambrian sandstone or quartzite that rises sharply above the surrounding jungle to heights of over 2000 m. Many tepuis contain water-washed caves, such as the 671 m deep Abismo Gai Collet cave, as well as sinkholes up to 300 m, formed when the arches of underground river tunnels collapsed.
German explorer Robert Schomburgk visited the area in 1835. He was amazed by the table mountains, but attempts to climb one of them were unsuccessful. Only almost half a century later, in 1884, a British expedition led by Everard Im Thurn managed to climb to the top of Mount Roraima.
However, it was the report of Robert Schomburgk's expedition to the tepui region that inspired the writer Arthur Conan Doyle to write the novel The Lost World about the discovery of a plateau inhabited by prehistoric species of animals and plants. 
As in the lowland areas of the llanos savannas, the tepui have rainy and dry seasons. From 2 to 4 thousand mm of rain falls per year. The climate is also influenced by altitude - at the highest elevations the temperature can drop to 0 °C, however, as a rule, the average thermometer reading at the peaks is from 8 to 20 °C, depending on the altitude. The soils are predominantly oligotrophic (low in nutrients).
The plateau of the mountains is completely isolated from the forest at the foot, which makes them “ecological islands”, on which now endemic species of flora and fauna have been preserved, developing for millennia in isolation. The wooded high plateaus support a wide variety of representatives of the orchid and bromeliad families, and carnivorous plants are also common.
The highest tepui, Pico de Neblina (3,014 m), is located in Brazil. The next three in height are Pico Phelps (2,992 m), Roraima (2,810 m), located at the meeting point of the borders of Brazil, Venezuela and Guyana, and Cerro Marahuaca (2,800 m).
View of Roraima from the Venezuelan plateau.
Roraima is the highest tepui in Venezuela. Its height is 2810 meters, and the top - a plateau with an area of 34 km² - is completely covered with dense vegetation, fancy stones, steep depressions, caves, small lakes and swamps. Local Indians call Mount Roraima “the navel of the earth” and believe that the ancestor of the human race, the goddess Quinn, lives on its top.
Cerro Ichun, located near the Brazil-Venezuelan border, has the largest plateau area (3,260 km²) and an altitude of 1,400 m.
Auyantepui is the largest of the tepuis, with a plateau surface area of 700 km². From this mountain falls Angel - the highest waterfall in the world.
Tepui Matavi, also known as Kukenan due to the fact that the source of the Kukenan River is located on the plateau.
Autana rises 1300 m above the forest and is pierced by a cave that runs from one side to the other.
Tepui Sarisarinyama, famous for its almost circular sinkholes with a depth and diameter of about 350 m, at the bottom of which unique plants grow.
Kukenan tepui
Venezuela's largest natural reserve, Canaima National Park, was founded in 1962 and is considered the oldest part of the Earth, more than 2 million years old. This lost world, seemingly preserved by chance as it was many millions of years ago, is visited daily by thousands of tourists.
Also, many other lesser-known, but no less beautiful tepuis, are located in the Canaima National Park, which lies in the southeastern part of Venezuela, at the junction of Brazil and Guyana. A reserve that stores priceless natural resources, is included in the UNESCO World Heritage List.
The nature of Canaima National Park is extremely diverse and unique. In addition to the majestic table mountains, hung with beautiful waterfalls, in the park you can see rare species of flora and fauna that are found exclusively in this area. For example, carnivorous plants lure insects into their beautiful fragrant traps and eat them. The foothills and slopes of the mountains are surrounded by cloud-covered forests, in which exquisite bromeliads and orchids stand out as bright spots.
On the tops of the tepui, grasses and shrubs grow lushly. No less rich fauna Venezuelan park - here you can find monkeys of various sizes and types, jaguars, giant ants and many small animals. But the world of birds, which live in large numbers on this rich land, boasts the greatest diversity of species.
In the Canaima National Park, vacationers are offered exciting canoe excursions along the lagoon, into which four waterfalls flow. Two of them - Golondrina and Ukaima - can be seen by canoeing, and under the other two - Acha and Sapo - there is a path along which you can walk inside the waterfall between the raging stream of water and the rock.
You can go to one of the most spectacular attractions of the park - Angel Falls, excursions to which are carried out either by boat or by plane. If you go on a boat excursion, you can see the picturesque Orchid Island along the way. 
Those who want to get to know the life of the aborigines of these lands better can go to the northern part of Canaima, where the settlement of the Pemon Indians is located. Here you have a unique opportunity to immerse yourself in an unknown culture, communicate with the aborigines, get acquainted with their rituals, traditions, legends and way of life, which has been preserved since ancient times.
Among other things, this area is shrouded in an aura of secrets and mysteries, which are told not only by ancient legends and myths, but also by reports of several expeditions organized by brave researchers. The last major official expedition to these hard to reach places, namely on Mount Roraima, was formed in 1965 by the son of the famous Juan Angel, the discoverer of the world's highest waterfall.
The expedition diary describes amazing world, in which the flat surface of the mountain top is covered with bizarre hills shaped like mushrooms, unusual depressions filled with water are scattered everywhere, and in addition to the animals already known to science, an unusual creature was discovered, which was called the Cadborosaurus.
The previously unseen beast had the head of a horse and the body of a snake with humps on its back. Frogs hatching eggs and bloodsucking insects were also found here, which were not affected by any chemicals protection, giant ants more than 5 cm long, capable of biting small tree branches with their steel teeth. 
The biggest discovery for scientists was the discovery of the remains of ancient animals that had recently lived in these places. There is an assumption that they died as a result of alien experiments. Scientists were prompted to this guess by a large round area discovered by the expedition, devoid of vegetation and completely strewn with silvery powder of unknown origin. Later, laboratory studies showed that this is an alloy of rare metals, which is simply impossible to create under earthly conditions.
When examining the caves, researchers found a large number of rock paintings depicting fantastic animals and creatures vaguely similar to humans. The expedition members also discovered several crypts, inside of which there was thick fog and a sweet smell. Some members of the team, having inhaled this strange aroma, fell into a coma for several days, and when they woke up, they told their colleagues about incredible visions and trips to other worlds.
After this incident, the decision was made to return, but here a new surprise awaited the travelers: they could not find a way out of this enchanted world, as if some mysterious forces were preventing this in every possible way.
Only a few months later, exhausted from searching for a way out, people managed to return home. They claim that they were helped by some unknown force that picked them up and slowly lowered them to central square one of the Indian settlements. 
When the scientists finally reached civilization, it was discovered that the families had long ago given up hope of their return: after all, the expedition, which was scheduled to return after several months of work, had been absent for four years.
For a long time No expeditions have been organized to this region, but today this lost world, which previously instilled fear in people, is visited daily by several dozen adventurers. For safety reasons, it is advisable to climb accompanied by an experienced guide.
Angel Falls is considered the HIGHEST IN THE WORLD, its height is 1054 m (according to other sources - 979 m). Angel Falls (in English - Angel, local name - Churum-meru) is located on the river. Churumi - a tributary of the river. Carrao (Orinoco River basin) in South America, in Venezuela.
Angel translated into Russian means “angel”. Although the names of waterfalls are usually very figurative and poetic, this waterfall is called an angel not in honor of the biblical angels and not because of its “proximity to heaven.”
The 1st magnitude giant bears the name of its discoverer, the Venezuelan pilot Juan Angel, and the Indians called the waterfall Apemey or Maiden's Eyebrow. Angel Falls, more than a kilometer high, was discovered relatively recently - in 1935. This proves how much unknown our beautiful planet Earth still conceals. 
How could such a phenomenal miracle of nature - a vertical stream of water a mile high - be hidden from humanity throughout history? The fact is that Angel is located in one of the most remote and inaccessible corners of the earth. The southeastern part of Venezuela - the Auyan Tepui mountain range (Devil's Mountain) is composed of porous sandstones, has a height of up to 2600 m, and ends abruptly with a sheer rock wall. The approaches to the wall are blocked by the selva - a dense tropical forest.
What was Angel looking for there? In the 1930s, a “diamond fever” broke out in Venezuela. Hundreds of adventurers, businessmen hungry for profit, and simply the poor rushed into the impenetrable jungle. Angel bought a small sports plane and flew to the Auyan Tepui massif. In those places, the tops of the table mountains are often covered with clouds. Angel was flying in clear weather and was the first to see a kilometer-long vertical water line.
It turned out that the waterfall does not fall from the very edge of the highland ledge. The Churumi River has “cut through” the upper edge of the cliff and falls 80-100 m below its edge. Water consumption is 300 sq.m/s. 
Juan Angel (Angel) did not discover diamond deposits. Others have done it. He suffered an accident (the plane capitulated) and was saved literally by a miracle. He landed in the very place that Conan Doyle chose to unfold the events of his famous novel The Lost World. Having reached the nearest post office, Angel reported his discovery to the National Geographic Society of the United States, and his name is now on all maps of the world.
On Latin American maps the waterfall is often designated as Salto Angel, i.e. "angel's jump." Recent years The discoverer spent his life in Venezuela, in the state of Ciudad Bolivar, and died in 1956. According to Angel’s will, his ashes were scattered over a waterfall named after him. 
The extent to which the term “miracle” in relation to the surviving pilot Angel is not an exaggeration can be judged by the fact that fourteen years later, in 1949, a group of five American and Venezuelan surveyors barely made their way through the jungle to the waterfall, as the wild forest was completely intertwined with vines and lush shrubby vegetation.
They had to continuously cut the road with machetes and axes. The expedition spent... nineteen days to cover the last 36 km! But the game was worth the candle. What the expedition members saw will not be forgotten by any of them until the end of their days. 
The most vivid description of the waterfall - perhaps the best in world literature - belongs to the chairman of the Soviet Peace Committee Yu. A. Zhukov, who viewed Angel Falls from an airplane in April 1971. “The pilot is flying his plane close, close to it. In front of us is an incredibly high - per kilometer! - an elastic, foamy white column of water - a tight stream of flow falls from the plateau into the abyss, at the bottom of which the Churumi River is reborn, whose flow is interrupted by this crazy water jump...
We have already heard and read that the height of the water fall here is so great that the stream, without reaching the bottom of the abyss, turns into water dust, which settles on the stones as rain. But you had to see this in order to imagine all the originality of the spectacle that presented itself: somewhere below, about three hundred meters from the bottom of the abyss, a powerful, elastic, boiling stream suddenly seemed to melt and break off in the fog.
And even lower, as if born out of nothing, the river was seething... How I would like to approach the waterfall not by plane, but on the ground - to stand near it, listen to its roar, inhale the smell of water falling from the sky! But this is impossible..." 
Even a thousand years ago, people were firmly convinced that the Earth was the center of the universe and did not explore anything beyond the oceans. However, thanks to adventurers such as Magellan, Columbus and others, new continents were discovered. And the idea of our world has changed forever. With the development of technology, namely with the spread of travel by plane, people began to independently explore every corner of our planet. The question arises: is there anything else that can be explored? Here you will learn 10 places that are still considered insufficiently explored.
Amazon rainforest
The Amazon forests are so vast that there are still tribes that have not been reached by modern civilization. Main reason, why unknown areas of the forest are not sufficiently explored - the danger from deadly poisonous creatures. In addition, several countries lay claim to these forests and therefore there is no specific policy on how to deal with this territory. However, there is a lot to explore.
Namibia 
One of the least populated countries in the world on one of the least populated continents, Namibia covers an area of 48,280 km2. It is also the least explored place in the world. It is also the only country in the world whose constitution talks about protecting the country's nature. Namibia's policies have strict laws to protect nature and preserve its pristine state. Therefore, many places are still unexplored, including the Kalahari Desert.
Greenland Ice Sheet 
You must be wondering why people haven't explored Greenland's glaciers yet? There simply isn't enough reason to take the risk of exploring a land that's 80% ice. The ice, measuring 966 km2 according to scientists, may melt in a few hundred years, but you still have the opportunity to set foot on these untouched lands.
Tristan da Cunha Archipelago 
Tristan da Cunha is one of the most isolated archipelagos in the world. One of the islands, almost 11 km wide, is part of other islands, which at one time were called the Inaccessible Islands. And this is not without reason - you can find a lot of shipwrecks off the coast.
Mariinskaya Trench 
When talking about the least explored places on Earth, one cannot fail to mention the Mariinsky Trench. More than 11 km deep, this place is the most unexplored place on Earth and is of extraordinary interest to scientists. Even now it is unknown what life forms inhabit this deep depression. The Mariinskaya Trench is indeed a very mysterious place.
Mount Kankar Punsum in Bhutan 
Lying on the Chinese border, between Bhutan and Tibet, Mount Kankar Punsum is so remote that until recently there were no clear maps. There are also disputes over the mountain that border on politics. Climbing mountains in Bhutan is illegal due to religious beliefs, and even for explorers it is difficult to obtain permission to trek in the mountains. There was an expedition from Tibet that managed to reach only the three smallest peaks of the mountain, but still, Kankar-Punsum is one of the few places on Earth unexplored by man.
Antarctica 
What could be the reason for the lack of exploration of Antarctica, if not the fact that it is a huge block of ice at the incredibly cold South Pole of the Earth. Despite the fact that there are certain expeditions, Antarctica is a very mysterious place.
Northern Mountains of Colombia 
It is difficult to say exactly what percentage of the mountains has been explored by man and what percentage has not. Many brave souls have never returned from traveling through these mountains, but you can take the risk.
Papua New Guinea 
Papua New Guinea is considered one of the less explored countries in the world. But, despite the amazing biodiversity, there are places in the country where no human has set foot!
Siberia (northeast and northwest, Kamchatka Peninsula) 
Being 70% of the territory of Russia, having 30% of the country's population, Siberia is one of the few places in the world with such a harsh climate that it is simply impossible for humans to thoroughly explore. The northeast and northwest of Siberia almost certainly were not developed by humans. Moreover, Kamchatka is also almost unexplored. Great news for enthusiasts!
Surprisingly, but true: there are still places on our planet where no human has ever set foot! They are only photographed from airplanes or from space orbit.
According to scientists, about thirty percent of the Earth's surface remains to be “explored” by expeditions. Is it a lot or a little? I believe that it is a lot, since we are talking about land. The largest unexplored (or poorly explored) areas are in South America. First of all, it is worth immediately identifying the Amazon basin with its virgin forests. There, even now, in our time, there are tribes that have never had any contact with modern civilization. The forests and rivers of the Amazon keep many secrets. In the jungle you can easily end up as lunch for wild predatory animals. In the rivers, crocodiles and anacondas will happily snack on you.
North-Eastern Siberia is recognized as the second most important “white spot” in the world. There are very few roads there at all. Taiga, mountains, and a very harsh climate do not allow for a good exploration of this vast territory. Other places can only be reached by helicopter. Severe cold (on average minus 45 degrees) in winter, dense hordes of mosquitoes, midges, and gadflies in summer... permafrost. To complete the picture, it must also be said that North-Eastern Siberia is the most sparsely populated territory of Eurasia.
Antarctica is considered the third little-studied place on the planet. Although it has been studied by scientists from several countries for decades, about half of the territory is still only approximately indicated on the map. And even then from the air, and not by other (more reliable in terms of accuracy) methods. The most poorly studied territory of Antarctica is its western part.
In fourth place is Greenland. It is 80 percent covered with ice. And this is really " white spot» on the maps. Global warming has caused the ice of Greenland to retreat and reveal unknown mountains, depressions, and plains. Even new rivers appeared.
However, there are places on Earth that are less famous in terms of their degree of exploration, but more exotic. For example, the northern mountains of Colombia. Not a single scientific expedition would dare to go to those places. Cause? This part of Colombia is under the complete control of armed militant groups of drug traffickers. Diplomacy is unknown to them.
Another exotic, but also extremely dangerous place on the planet for research is Papua New Guinea. More than half of its territory has never had any scientific expeditions. Cause? In the mountains and forests of this country there are tribes of cannibals. How many there are is unknown. But they are hostile to any contact with them and, at every opportunity, they capture those who dare to pass through their territory. The end of captivity is always the same - a bloody ritual of eating the aliens.
Getting to know Namibia can be no less dangerous. Its rich wildlife constantly attracts poachers armed with the latest small arms. More than 2,500 cheetahs live in Namibia - a quarter of all cheetahs on the planet. Although the constitution of this country has a special article on the protection of wild animals, poachers simply meet with machine-gun fire any attempts to detain them or even photograph them. It is clear that in such conditions there can be no talk of any scientific research.
The Tibetan Plateau is also poorly studied. But here the reason is completely different - an almost Martian landscape, complete desolation, absolute impassability. You will be very lucky if your local guide can guide you correctly. Otherwise, the entire expedition will face certain painful death due to hellish conditions. By the way, cartographers still cannot even create a general map of the Tibetan plateau. You can still travel along it in any direction and not know what will be ahead. Monotonous mountains and rocks create the feeling of being on an unknown planet.
On Earth there is not only a part of the land unknown to research. Scientists say that the Moon is much better studied than the sea depths of our planet. And as an example - the Mariana deep-sea trench. Only very recently (in 2011) its relief was obtained from a US military vessel using a multibeam echo sounder. What is there, in the depression itself, is unknown. But one of the last descents of the bathysphere almost ended in tragedy. The strongest titanium cable was “cut” by an unknown sea creature at great depths. Only by some miracle did it not break. What kind of monster tried to “gnaw” a metal cable at a depth of many kilometers?
Getting to any of the places on this list will be extremely difficult, even with modern development technology will have to go through a rather difficult path. Are you really ready to conquer Mother Nature? We present to your attention a selection of 10 least explored places on Earth, where nature has been preserved in in its original form, and all processes go on as usual, without human intervention.
Greenland ice sheet
First discovered by Eric the Red, this land is covered with 80% ice. The ice sheet, which is 600 square miles in size, is thought to melt in about 2,000 years at current rates, so you still have a few millennia left to visit it. You can admire the beauty of these places in the article about the ice canyons of Greenland, or in other articles on LifeGlobe.
Northern Mountains of Colombia
The Northern Mountains of Colombia were largely explored only by guerrilla fighters and outlaws. Because of this, it is difficult to say exactly how many mountains have actually been discovered and explored. Most of the local tribes here are peaceful, and scientists discover new representatives of flora and fauna with each new expedition.
Amazon rainforest
Namibia
With a population of 2.1 million spread over 300,000 square miles, it is no surprise that Namibia is known as the least populated country in Africa. For animals such as Cheetah and Rhinoceros, Namibia is an ideal haven from poachers. This is due to the program for protecting the natural world, spelled out in the Namibian government constitution. This is the only country in the world that has done this.
Tristan da Cunha
Located near the mainland South Africa, Tristan da Cunha is one of the most isolated islands in the world at just 7 miles long. This island has a temperate climate, which makes it ideal for becoming a sanctuary for giant elephant seals, shorebirds and waterfowl. The Tristan hotspot is an area of volcanic activity that forms archipelago islands in the South Atlantic Ocean.
Northeastern Siberia
Siberia is one of the most parts of Russia, which covers approximately 70% of the Country's territory. However, only 30% of its population lives here. In fact, most of the population in Siberia is somehow connected with oil production.
Gankar Punsum
The Gangkar Punsum Mountains are at the top of the list of the tallest mountains in the world. On the borders of Tibet, China and Bhutan, these high altitudes are little explored due to both the distance and the political, social, and spiritual issues between the three countries.
Antarctica
Antarctica is often noted as the world's largest body of ice, difficult for scientists to access. Recently, Antarctic research has become more intensive, as global warming it became possible to stay here for longer periods.
Mariana Trench
This area is the most unexplored in the world. A deep sea trench, the Mariana Trench is located near Guam and the Mariana Islands. It wasn't until 2011 that the US Navy imaged the topography of the Mariana Trench from a survey ship using a multibeam echo sounder.
