Olympic Rings Are Unveiled On Tower Bridge
LONDON, ENGLAND – JUNE 27: Mayor of London Boris Johnson addresses the media 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)