the tallest waterfall on land. Spanning an incredible 300 miles (480 kilometers) in width, this underwater giant operates silently beneath the waves, playing a critical role in global ocean ...

This death-defying pool at the edge of a giant waterfall isn't called the Devil's Pool for nothing. Located at Victoria Falls in Zambia, the natural infinity pool overlooks a 338-foot drop.

The real challenge comes if you choose to climb to the base of the waterfall: You'll need to make ... you can see Sycamore Falls cascading into a giant pool of water. Note the falls may be dry ...

Antarctica is not the icy world scientists thought it was. A team of scientists recently compiled the most detailed map, yet, of liquid water across Antarctica. They found water in places where it ...