This Malasaña favorite right off Plaza Dos de Mayo has been rocking since La Movida, the flowering of culture and music after the long years of straight-laced fascist rule ended in 1975. The interior is a riot of color, thanks to neon lights, flickering TVs and walls covered in concert posters. Old-school rock blares through the sound system, which gets increasingly inaudible as the bar fills up with a mixed-aged crowd that makes anyone feel welcome. The bar opens earlier than most places in Malasaña, so it makes a good first stop around 10 or 11PM. Go any later on a weekend, and you’ll find it packed.