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.
Here's something you should never watch if you're afraid of heights: A group of Russian daredevils filmed themselves climbing (and hanging from) the world's second highest building, the still under-construction Shanghai Tower. It's absolutely terrifying.
In Soviet Russia... you film your friends scaling narrow steel beams—which are conveniently located 900 feet in the air—without any safety equipment. And then, if you don't die while doing so, you upload it to YouTube. Watch inside.
Check out this multiple angle view of a daredevil free falling 150 ft without safety gear. The only thing to break his fall is cardboard, which at about 120 mph, is not a comfortable landing.