The Picasso Museum is on one of Barcelona's most famous streets, Carrer Montcada. The Count of Barcelona gave the street to Montcada in return for services he rendered to the court. Montcada, a medieval Donald Trump, lined the street with a housing development targeting the upper classes. The street was lined with elaborate palaces, and in order to maximize the square footage, the street was shrunk to the size of an alleyway. It's a nice place to wander, although it's a bit oppressive, as from the street it's like walking between two walls.