Mathieu Bolillo is an acrobat, capable of balancing just about anywhere. One evening backstage in the MGM Grand, Mathieu asked a friend if it was possible for him to go down four flights of stairs on a handstand. A bet of $100 developed after that. In this video, Mathieu rocks onto his hands and descends two flights of stairs before him, never looking shaky or out of control. Credit: Mathieu Bolillo