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Olympic Rings

Mayor of London Boris Johnson cheers as a giant set of Olympic rings are displayed from Tower Bridge on June 27, 2012 in London, England. The rings weigh over three tonnes and measure over 25 metres wide by 11.5 metres tall; they will be illuminated in a light-show every evening during the Games. (Photo by Oli Scarff/Getty Images)

Olympic Rings unveiled on Tower Bridge

A giant set of Olympic rings were unveiled on Tower Bridge June 27 in London, England. They will be illuminated in a

light-show every evening during the Games.