In Barcelona the underground metro, or subway, is the fastest, cheapest, and easiest way to get around. Metro lines run Monday–Thursday and Sunday 5 am–midnight, Friday to 2 am, Saturday and holiday evenings all night. The FGC trains run 5 am to just after midnight on weekdays and to 1:52 am on weekends and the eves of holidays. Sunday trains run on weekday schedules.
Transfers from a metro line to the FGC (or vice versa) are free within an hour and 15 minutes. Note that in many stations, you need to validate your ticket at both ends of your journey. Maps showing bus and metro routes are available free from the tourist information office in Plaça de Catalunya.
Transports Metropolitans de Barcelona. 93/214–8000; 93/298–7000; www.tmb.cat/en/home.