A man wearing a nun's habit cycles through the streets of Kensington during the eighth annual Kinetic Sculpture Derby in Philadelphia, Pennsylvania May 17, 2014. Kinetic sculpture competitions, in which people dressed in eccentric costumes ride custom-made human-powered vehicles, were founded in 1969 by a Californian artist named Hobart Brown, and now take place across the globe, according to event organizers. REUTERS/Charles Mostoller (UNITED STATES - Tags: SOCIETY TRANSPORT)