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.

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

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 ...

American rock climber Alex Honnold summited the Taipei 101 skyscraper — with no ropes or safety net — in an event broadcast live. • New heights: The 1,667-foot Taipei 101 is one of the tallest ...

Netflix livestreamed Honnold climbing the world’s 11th-tallest skyscraper without using a rope or any safety gear.

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

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

Lead climbing is one of a number of different types of climbing. This discipline of climbing can take place on rock, ice or indoor climbing walls. If you've been watching the Olympics sport climbing ...