We spoke to a mountaineer about the effect high altitude has on blood pressure... and dicks.
Volunteer engineers and architects want to solve Mount Everest's most unsolvable problem: its landfills of human waste.
Alex Honnold talks about his historic rope-free ascent of Yosemite's El Capitan, working with film crews, and what comes next.
The 55-year-old only used a pair of climbing shoes and a bag of chalk.
Just please don't. Your mother is worried sick about you.
Earlier this month, Emily Harrington successfully summited Cho Oyu. Her team gave themselves just two weeks door-to-door to summit and ski the "Turquoise Goddess" – and broadcast the entire expedition to the world via social media.
The simple piece of gear that made ice climbing a legit sport.
Augmented reality meets indoor climbing
He made it to the 21st floor before getting nabbed.
We went to an indoor climbing conference to see how gyms are changing the sport. Hint: more plastic, less rock, and lots of people talking about millennials.
Two climbers died and two more are missing, but a woman set a new record for ascents by a female, and a combat amputee reached the summit for the first time.
We spent a day training with Ueli Steck to see how much work goes into being one of the fastest mountaineers in the world.