Four climbers went up and down Everest in under a week with the help of xenon gas—a record-breaking ascent that has ignited controversy in the mountaineering world.

Pikes Peak is a symphony, a parade, a privilege, a ride that tempts death at every corner. There may be no more beautiful racing venue anywhere, or one that brings out more of a person's inner lunatic ...

Climbing Mount Everest is widely considered one of the most difficult challenges a mountaineer can undertake. Its towering ...

Mount Everest towers more than 29,000 feet above sea level.

Siv Harstad, a Summiter, joins John Landecker to talk about how she overcame her fear of heights to climb Mount Everest and ...