Gaudi's masterpieces: La Sagrada Familia, Le Pedrera, Casa Batllo.  Stroll down Passeig de Garcia to reach Placa de Catalunya and the old quarter.  Head down La Rambla and duck into the Barri Gotic for a glimpse of the cathedral and a wander of the city's ancient, twisting lanes.

Visit Museu Picasso and the Esglesia de Santa Maria del Mar in El Born.  Stop off for tapas and wine at La Vinya del Senyo before heading to the waterfront.  End the day with a meal in La Barceloneta.