American rock climber Alex Honnold on Sunday successfully ascended the Taipei 101 skyscraper without ropes or protective equipment, thrilling a crowd at street level.

The 37-year-old reached the top of the 508-meter (1,667-foot) tower about 90 minutes after starting, waving his arms in celebration. Honnold, famed for his ropeless climb of El Capitan in Yosemite National Park, scaled one corner of Taipei 101 using small L-shaped footholds and clambered over ornamental structures with his bare hands.

The most challenging part was the 64 floors in the middle section, known as the “bamboo boxes,” featuring steep overhangs. Honnold paused briefly on balconies between sections to rest.

The climb was broadcast live on Netflix with a 10-second delay, drawing excitement and concern over the extreme risk of the endeavor. Originally scheduled for Saturday, the attempt was delayed by a day due to rain.

While Honnold is not the first to scale the iconic building, he is the first to do so free solo. French climber Alain Robert previously ascended Taipei 101 on Christmas Day 2004, but with ropes.

The stunt highlights both Honnold’s remarkable skill and the growing fascination with extreme urban climbing on live media platforms.