An easy day trip from Las Vegas, its famous rock formations, including Pink Canyon and the Beehives, look like they’d be at home on Mars. This is Nevada’s first and oldest state park for a reason.

The rock formations seem straight out of a fantasy film, with some looking like giant mushrooms and others resembling turtles. Then there's the twisted Doggen tower and the Janus head, all part of ...

From ancient rock formations to stunning underground lakes, South Africa is home to some of the most fascinating caves that ...

Rock of ages The Burren is home to two world-famous Irish landmarks. The first, hidden beneath a great karst cliff, is a grey building in a field of dandelions, marked on maps as Glanquin Farmhouse.

Africa is home to some of the best rock climbing spots in the world, luring adventure junkies from across the globe ...

The natural entrance to the cave at Carlsbad Caverns National Park is pictured. Provided by the National Park Service Adrian HeddenCarlsbad Current-Argus A one-of-a-kind elevator system takes visitors ...

Adrian HeddenCarlsbad Current-Argus A one-of-a-kind elevator system takes visitors to the Carlsbad Caverns about 750 feet underground to enjoy the world-famous rock formations, and back… ...