Barcelona’s metro system is impressive, with easily navigable signs and colour-coded lines as well as easy-to-follow line maps inside each car that illuminate each stop as it arrives. Metro trains run about every three to five minutes and are generally very reliable. Well-lit stations feel safe at any hour and well-marked exit signs (Sortida) help direct the flow of foot-traffic. The metro system is open Sunday-Thursday 5am-midnight, Friday 5am-2am and 24 hours on Saturday.
