Ferrocarrils de la Generalitat de Catalunya is a railway company which operates several unconnected lines in Catalonia, Spain. The lines operated include metro and commuter lines in and around the city of Barcelona, tourist mountain railways, and rural railway lines. They include 3.5 kilometres (2.2 mi) of 600 mm (1 ft 11 5?8 in) gauge route, 140 kilometres (87 mi) of 1,000 mm (3 ft 3 3?8 in) metre gauge route, 42 kilometres (26 mi) of 1,435 mm (4 ft 8 1?2 in) standard gauge route, and 89 kilometres (55 mi) of broad gauge route, making the FGC one of the few railway companies to operate on four different gauges.