An American is climbing Taipei 101 with no ropes, live on TV. It's drawing excitement — and concern.

Organizers delayed professional rock climber Alex Honnold's ropeless ascent of the Taipei 101 skyscraper for 24 hours due to weather, they said.

Alex Honnold, already famous for pushing the limits of what’s possible on sheer rock faces, will attempt to climb the 1,667ft tower - one of Asia's tallest skyscrapers - in a live Netflix broadcast.