Mountain climber Tommy Caldwell takes us inside Alex Honnold’s free solo of El Capitan.
So you’re a serious runner? Consider the Self-Transcendence Race, running around the same half-mile loop for 3,100 miles.
Tommy Caldwell talks about his lifelong obsession with climbing.
He may have already conquered El Capitan, but Alex Honnold can dream up far more daring and dangerous adventures.
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