Olympic Rings Are Unveiled On Tower Bridge

LONDON, ENGLAND – JUNE 27: Mayor of London Boris Johnson (L) and Lord Sebastian Coe, The Chair of the London Organising Committee of the Olympic Games, cheer 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)