Three Guys Scale The Tallest Building In The World 1.50K Kate Shaprio 11/10/10 09:30AM Filed to: WoW WoW buildings TV Video Here's a video of two dudes sitting on the tallest building in the world with no safety harnesses on. No big deal. Just perched there. 2,717 feet in the air. Pretty awesome. Warning: This video might cause vertigo. [The Daily What]