American rock climber Alex Honnold climbed the Taipei 101 skyscraper on Sunday without any ropes or protective equipment. Cheers erupted from a gathered crowd as he started climbing the 508-metre (1667-foot) tower using the horizontal metal beams to pull himself up with his bare hands.

Honnold’s climb in Taiwan’s capital city was broadcast live on Netflix with a 10-second delay. The ascent, originally scheduled for Saturday, was delayed for 24 hours due to rain. The climb drew both excitement and concern over the ethical implications of attempting such a high-risk endeavour on live broadcast.