Hundreds of naked people pose in front of the Aletsch glacier during a massive naked photo session with U.S. photographer Spencer Tunick, near Bettmeralp, Switzerland, Saturday Aug. 18, 2007. The environmental group Greenpeace commissioned Tunick to take pictures of nude volunteers on a Swiss glacier to call attention to the issue of global warming and its impact on glaciers.
Photo: Laurent Gillieron, AP/Keystone