This is one of the most famous little student bars of Madrid’s Malasaña neighbourhood, packed to the rafters at the weekend and surprisingly quiet during the week. The walls are brightly painted, and the bar bedecked with action figures and toys, nick-nacks and pictures. It certainly has a lot of character, unlike its choice of drinks and predictable clientele. Go early in a group and stake out some space. Avoid if you’re claustrophobic.