Basilica of the Sagrada Familia
Casa Batlló - Gaudi's “house of bones”
Gothic Quarter (Barri Gotic)
Palace of Catalan Music
Park Guell is one of the masterpieces of the Catalan architect Antoni Gaudi
Casa Mila, popularly known as La Pedrera, is a most unusual building, constructed between 1906 and 1912 by the architect Antoni Gaudí (1852–1926)
Erotic Museum
Montserrat - 1hr drive
the long rather featureless beaches in Barcelona itself - go to nearby ones instead
visit Majorca - flights or ferry