ADVERTISEMENT
The Mariana Trench — 10,994 meters
The Mariana Trench is an oceanic deepest-sea trench on Earth. The deepest point of the Mariana Trench is the Challenger Abyss, which according to 2011 measurements, goes down to 10,994 meters below sea level. If you put the highest mountain, Everest, in this trench, there would still be enough space to drown a whole continent in it. This is one of the places on Earth that we know very little about, compared to our neighboring planets and even solar systems.
