Underground train approaching Casco Viejo station, Metro Line 2, designed by Norman Foster, Bilbao, Basque Country, Spain, Europe

bilbao basque country spain underground train casco viejo norman foster public transport commuters railway station urban life transportation subway transit system train arrival platform architecture interior design modern transport city life traveler waiting area passengers train tracks underground station european city infrastructure subway station rail transport urban design daily commute movement interior lighting travel cityscape train system public transit modern architecture transit technology commuting experience busyness everyday life architectural design modern design station architecture people waiting urban travel urban scene traveling mechanized transport transportation network