Climbers Alex Honnold and Tommy Caldwell set out on a daring expedition to tackle Alaska’s formidable Devils Thumb. Battling harsh conditions and daunting peaks, they push their physical and mental…

Follows elite climber Alex Honnold and a world-class climbing team led by National Geographic Explorer and climber Mark Synnott on a grueling mission deep in the Amazon jungle as they…

Reaching 29,029 feet, Mount Everest has long captivated mountaineers of all stripes. But a peak that draws athletes and mountaineers to new heights isn’t without danger — or a dark…