World's Most Crowded Subways
No. 9 Paris
Annual Ridership: 1.52 billion
Opened in 1900 during the World’s Fair, the Paris Métro gifted the city with architect Hector Guimard’s now-iconic Art Nouveau station entrances and signage. Gare Saint-Lazare, one of the busiest stations in Europe, has been a favorite among artists: Monet painted the station, as did his cohorts Édouard Manet and Gustave Caillebotte.
Source: STIF (Syndicat des Transports d’Île-de-France), 2011