Adventure sports are all about pushing the limits—and that’s literally what these three rock climbers did: They “built” the world’s highest rock-climbing wall, 4,000 feet above Denver, Colorado. Climbers Daniel Krug, Hank Caylor, and Max Fanning accomplished the feat by hanging a foldable wall from a hot-air balloon—and then scaled it. To top it all off, Krug finished his record-breaking climb by jumping from the balloon. Watch the crew from Denver Climbing Company in action below.
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