Watch These Real-Life Supermen Wingsuit Dive Into Their Metropolis

When you go sky-diving, there's that all-important business of making sure you don't slam into the ground, but you also have to make sure you don't slam into anything protruding out of it. This pair of urban wingsuit daredevils who dove into Rio de Janeiro came damn close to the latter when they zipped through a… » 3/16/13 10:00am 3/16/13 10:00am