Sants Station (Barcelona Sants) is the city's main railway station and its busiest transport hub. Long-distance AVE trains to Madrid, Seville, and beyond depart from here, along with regional services to the Costa Brava, Girona, and Tarragona. The station sits at the intersection of metro lines 3 and 5, making connections straightforward.
The interior is functional rather beautiful — a large underground concourse with shops, cafes, and ticket counters. Arrive with time to spare for AVE departures, as security screening can create queues. Luggage storage lockers are available on the lower level if you want to explore the Sants neighbourhood before your train.