Holy crap. The John Hancock Tower in Chicago rolled out a snazzy scary new attraction for people who visit the top of the skyscraper: windows that tilt down to give you a better view of the ground beneath you. It's like a roller coaster ride for those afraid of heights (that would be me). Just stand next to the window and it'll tilt itself down like you're falling.
I'm definitely never doing this because I'm a weenie. Check out the Chicago Sun-Times video of the tilt in action below: