North America's deepest gorge, Hells Canyon, which slithers along the border of Idaho and Oregon, is a surprisingly new ...

Truly fascinating stuff.

57.This is what the remains of a World War I trench looks like today: These trenches date back to the Battle of the Somme and ...

The Mariana Trench, located in the western Pacific Ocean, is the deepest part of the world’s oceans and one of Earth’s most mysterious geographic wonders. This video takes you on a journey to explore ...

Nearly two years after OceanGate Expeditions' Titan tourist submersible imploded, killing all five passengers, investigators ...