Alex Honnold's Wife Feels 'Breezy' as She Watches Him Scale 1,700-Foot Skyscraper without Ropes or Harness

"I’m just trying to stay calm and be in the moment," said Sanni McCandless, who has two children with Honnold

Who is the California native climbing one of the world's tallest skyscrapers?

Alex Honnold, the rock climber who famously scaled Yosemite's El Capitan without ropes, will try his hand at a 1,667-foot skyscraper in a spectacle aired live on Netflix.

Alex Honnold's brain: What fMRI study revealed about climber's lack of fear

Climber Alex Honnold is set to scale one of the world's tallest buildings without any ropes or safety nets.