I t’s almost hard to believe that a lake could boil on its own, but that’s exactly the spectacle you’ll find in the heart of ...

The Savonoski Crater is a round hole in Alaska's Katmai National Park that has defied scientific explanation ever since it ...

Videos from Yosemite National Park show the iconic "Firefall" phenomenon glowing at Horsetail Fall inside the park.

Driving across the state of Oregon takes a few hours, but on that drive, you can witness millions of years of geology unfold ...