American rock climber Alex Honnold on Sunday scaled Taiwan's Taipei 101 skyscraper without ropes or safety gear.
Alex Honnold climbed the 508-metre (1,667-foot) tower using the horizontal metal beams to pull himself up with his bare hands.
Wearing a red short-sleeve shirt, Honnold paused during the climb to face the onlookers, prompting more applause.
The free solo ascent was broadcast live on Netflix with a 10-second delay.
The climb had been scheduled for Saturday but was postponed by a day due to rain.
The building has 101 floors, with the hardest part being the 64 floors comprising the middle section - the "bamboo boxes" that give the building its signature look.
Honnold isn't the first climber to ascend the skyscraper, but he is the first to do so without a rope.