That climber is Alex Honnold, who in June 2017 climbed the Freerider route without ropes or protective gear. His ascent was completed in 3 hours and 56 minutes and remains one of the most consequential achievements in the history of climbing. It was documented in the Academy Award-winning film Free Solo.

Climbing superstar Alex Honnold is taking on Taipei 101; here's his net worth.

The star of Free Solo will attempt ‘the biggest urban free solo ever’ as he scales the Taipei 101 skyscraper in Taiwan

American rock climber Alex Honnold will have to wait another day to Free Solo Taiwan’s Taipei 101, one of the tallest buildings in the world. The death-defying star of the 2018 Academy Award-winning documentary Free Solo will attempt an unprecedented ascent Saturday.

The 'Free Solo' star was scheduled to attempt a climb of the 1,667-foot skyscraper without ropes in a live Netflix broadcast, drawing global awe and anxiety.

Honnold made history in 2017 when he became the first person to ever climb El Capitan, and now he has his eyes set on another impressive feat.