Alex Honnold says he needed to know if scaling the Taipei 101 was even possible before he did Netflix’s "Skyscraper Live" special, so he turned to a more traditional way of climbing to find out.

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

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

Free solo climber Alex Honnold discusses the message he hopes viewers take away from Netflix's “Skyscraper Live" and his film ...

“Free Solo” star Alex Honnold expects to ascend the Taipei 101 tower in less than 2½ hours.

In one hour and 32 minutes — just two minutes over his own estimation — Alex Honnold completed his free solo climb of Taipei 101, an eye-boggling spectacle live-streamed by Netflix and watched by a ...

World-famous climber Alex Honnold has once again stunned audiences. This time, by scaling Taipei 101, one of the tallest ...

TAIPEI, Taiwan - American rock climber Alex Honnold scaled Taipei 101 on Sunday without ropes or safety equipment. Cheers ...

World-renowned free climber Alex Honnold, 40, began scaling Taipei 101 shortly after 9 a.m. local time Sunday. Clear skies ...

American rock climber Alex Honnold ascended the Taipei 101 skyscraper on Sunday without any ropes or protective equipment.

The earthquake-proof skyscraper of steel and glass has captured the imagination of professional rock climber Alex Honnold for ...