Alex Honnold is gearing up for one of the most dangerous challenges of his career: attempting a free solo climb—without any ropes or protective gear—on Taipei 101, one of the tallest skyscrapers in th...

Rock climber Alex Honnold is the first person to climb the Taipei 101 without ropes.

The athlete stood atop the building’s sphere triumphantly, peering over the edge, waving to fans and even taking a selfie on a structure that appeared barely big enough to hold a single person.