Terrifying Video of a Guy Climbing a 2,500 Foot Cliff Without a Rope

Sure, the footage of those Russian daredevils climbing the world's second tallest building was impressive. But it pales in comparison to this, rock climber Alex Honnold tackling a 2,500 foot cliff without a rope. The climb, which again, was done without a rope or safety harness, took more than three hours to complete.

Needless to say, do not try this for any reason.