Population (people): 4,576,394
Number of stations: 163
Length (km): 123.7
Riders per annum: 412,583,000

The Barcelona Metro was founded in 1924. It now consists of eleven lines operated by two separate companies: Transports Metropolitans de Barcelona (TMB), which manages the major underground lines; and Ferrocarrils de la Generalitat de Catalunya (FGC, or Catalan Government Railways), which manages three integrated commuter lines running out into the extended metropolitan area. 98% of the stations are located underground.