When it comes to exploring uuncharted territories, you might think that outer space is the final frontier. But the truth is that there are plenty of places right here on Earth that we know remarkably little about. Here are 20 haunting, untouched mysteries just waiting to be explored by humankind.
The Undersea Depths Of The Marianas Trench
One of the least-explored parts of the world is the deep, deep ocean. It doesn’t get any deeper than the Marianas Trench, which at its lowest point measures more than 36,200 feet below sea level — nearly seven miles. Only a handful of people have ever been down there, and the giant marine wildlife observed is like something out of a science fiction movie.