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...

American climber Alex Honnold don successfully climb up one Taiwan skyscraper without rope, harness or safety equipment.

Cheers erupted from a street-level crowd as he reached the top of the spire of the 1,667-foot tower about 90 minutes after he started.