Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

Though the volcano’s magma chambers could hold enough material for a caldera-forming event, none of them are likely to erupt soon.

An uptick in seismic activity on the volcanic island of Santorini has raised concerns about a potential eruption.

The breath-taking 'waterfall of fire' is a trick of the light, that illuminates Yosemite’s Horsetail waterfall on clear ...

An Augusta native has become a free-climb world record holder – climbing some of the highest peaks in California in under 22 ...