London 2012 - London Transport

LONDON, ENGLAND - MARCH 05: Commuters board a carriage at Bank London Underground station on March 5, 2012 in London, England. London's underground rail system, commonly called the tube, is the oldest of its kind in the world dating back to 1890. It carries approximately a quarter of a million people around its network every day along its 249 miles of track and 270 stations. The network has undergone several years of upgrade work and refurbishment in preparation for the Olympic Games which take place this summer. During this time the tube is expected to carry millions of visitors to and from the Olympic Parks. (Photo by Dan Kitwood/Getty Images)