Barcelona Metro, Rapid transit system in Barcelona, Spain
This underground rail network covers roughly 170 kilometers (106 miles) linking the city center to surrounding suburbs through 12 lines at 189 stops. Trains run below ground in the core area and emerge above ground in outer zones.
A railway line to Sarrià dating from 1863 is considered a predecessor to this system, which later expanded through two additional networks in the 1920s. Today's lines connect these original routes together.
The red and white diamond-shaped signs with a curving M mark entrances spread throughout the city. Many locals rely on the network for daily commutes between residential neighborhoods and workplaces, while travelers use it to move quickly between attractions.
Trains run from 5 AM until midnight on weekdays, with extended service on Fridays and continuous operation over weekends. Stations are usually close together, making it easy to transfer or walk to nearby destinations.
The network operates with three different track widths for various line groups, making it technically different from most other metro systems. This trait comes from merging older railway routes into a single system.
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