A rider demonstrates Lighting artist Bruce Munro latest installation “Star-Turn” at a one-night event in front of the Holburne Museum on December 21, 2011 in Bath, England. The event, in aid of Help For Heroes, saw sponsored riders pedaling the contraption from dusk on the shortest day, to the following dawn. Star-Turn joined Munro's fibre optic Field of Light, which has been installed in the museum gardens and remains in place until January 8th. (Photo by Matt Cardy/Getty Images)