What is the highest point in the world?
Towering 29,029 feet in the air, the top of Mount Everest is the closest
you can get to touching outer space while still standing on Earth.
 Where is the lowest point in the world?
The Challenger Deep Trench
It is the lowest known natural point in the world at 35,797 ft below sea level at the bottom of the Mariana Trench.
Only three people have ever made it to the bottom in a submersible, one of which was filmmaker James Cameron.