And if not vertigo, you'll at least get that horrible tingly feeling behind your knees and probably start sweating.
On Sunday, Théo Sanson walked almost 500 meters on a slackline rigged between The Rectory and Castleton Tower in Castle Valley, Utah, hoping to set a new world record. That feat alone is worth watching but here you get to also see the terrifying scale of what Sanson achieved.
Make sure you watch it full screen for the maximum effect.
Via Vimeo
