World's Most Crowded Subways
No. 11 London
Annual Ridership: 1.23 billion
The oldest metro system in the world celebrated its 150th birthday in 2013. London’s 270-station system employs about 19,000 staffers; the busiest is Waterloo, where 57,000 riders enter during the three-hour morning peak each day, and 82 million people pass through annually. On the bright side, Waterloo also happens to be the Tube station with the most escalators (it has 23).
Source: Transport for London, 2012