THE IDEA: Make Dave Hahn, one of the world's greatest Everest guides, face his fear of heights.
THE PLAN: Send him 3,000 feet up El Capitan with Conrad Anker, Jimmy Chin, and Ivo Ninov.
THE RESULT: Panic attacks, cold sweats, and the February-issue feature "Aces High."
Here, go behind the scenes with video of the El Cap climb, listen to our complete podcast interview with the climbers, and check out a photo gallery of Jimmy Chin's shots from the trip.
Video: On the Climb with Dave Hahn
Follow Hahn and the rest of the crew as they make their way up Yosemite's El Capitan.
Podcast: Q&A on Climbing El Cap
Conrad Anker, Jimmy Chin, and Ivo Ninov talk about guiding Dave Hahn on El Capitan.
Photo Gallery: El Cap via Jimmy Chin
Photographer Jimmy Chin captures the essence of Hahn's climb in this gallery.