Reinhold Messner is acclaimed as one of the greatest mountaineers of all time. He was the first person to climb all 14 8,000-meter peaks—the tallest mountains in the world—and one of the first to climb Mount Everest without any supplemental oxygen. Hear Messner recount what it was like to climb Everest and what drives his passion for adventure.

Read more about Messner, and his advice to the next generation of climbers:

PRODUCERS: Mary Anne Potts, Jason Kurts, and Freddie Wilkinson
VIDEOGRAPHERS/EDITORS: Nacho Corbella and Eileen Mignoni