Olympic rings unveiled on Tower Bridge

Members of the media photograph the Olympic rings atop the iconic Tower Bridge in London after they were lowered into position on June 27, 2012, coinciding with one month to go until the start of London 2012 Games. The giant rings, which are fully retractable to allow for tall ships to pass through the bridge, will remain in position for the duration of the Games.

Complete Coverage: London 2012 Olympic Games

Credit: AP Photo/Lefteris Pitarakis