It's a unique grand town house in the centre of Barcelona. The details of design are fascinating and the place gives great insight into life in Barcelona as well as Gaudi's work. It's not a large palace; the detail and innovation stand out, not the scale. We took a guided tour and it was excellent. Even the 11 year old (here in exchange for a trip to Camp Nou) enjoyed the hour or so. Good value and much quieter than the more famous attractions. We'd definitely book again.