This is a whole new level of stomach-lurching.
Urban daredevils Vadim Makhorov and Vitaly Raskalov recently released a video of their illegal ascent up Shanghai Tower, which will be the second-tallest building in the world when it's completed. In black hoodies and face masks, the Russian duo breaks in to a construction site and scales the 2,073-foot tower -- and then its 59-foot construction crane -- in darkness and fog, with no semblance of a safety harness.
Their footage (shot on GoPro cameras) will throw your gut for a loop. Catch our climbers inching their feet onto the veeery edge of the tower at 1:43, and hoisting themselves up the crane poles, jungle-gym style, at 2:05. The Shanghai World Financial Center and Jin Mao Tower -- some of Shanghai's tallest skyscrapers -- look like toys peeking out of the cloud blanket far below.
And if you're easily nauseated, we DARE you to watch the camera peer down the crane shaft at 3:10. EEK.
...let's just hope Raskalov doesn't try to climb that one next.