Casa Labra is a small bar hidden away in a street behind the Puerta del Sol, in Calle Tetuán. It is famous for being the bar where the Spanish socialist party (PSOE), who came to power in 1977, was founded on the 2nd May, 1879. A typical old-style Spanish bar, with heavy wood-panelling and only standing room in the bar, you can order bacalao (small pieces of cod in batter) from a separate bar and if there’s no room at the bar, simply take your beer and cod onto the pavement!