Alex Honnold also famously climbed Yosemite's El Capitan without any ropes or safety gear in 2017.

I kind of lost track of space and time,” the American told NBC News' "TODAY" after he climbed the famous skyscraper.

American rock climber Alex Honnold became the first climber to scale the tower - formerly the tallest building in the world - ...

THIS is the jaw-dropping moment a rock climber reaches the top of a 101-storey skyscraper without using a single rope.

Famed rock climber Alex Honnold has described some of the things that may work against him in his attempt to free climb one ...

Alex Honnold, who climbed a 1,667-foot-tall skyscraper in Taiwan on Sunday, is one of a dozen or so known skyscraper climbers ...

US rock climber Alex Honnold has completed a breathtaking free-solo ascent of Taipei 101, scaling the 508m skyscraper without ...

World-renowned free solo climber Alex Honnold has successfully summited Taiwan’s Taipei 101 in just over an hour and thirty ...