At the Museu Picasso, Diumenges al Picasso (Sundays at the Picasso Museum) offers Sunday morning performances in the museum ranging from classical music to clowns.
Admission is free the first Sunday of the month, an excellent opportunity if you arrive early enough.
For a light Mediterranean meal, the terrace café and restaurant provides a good resting point and breaks up your visit into manageable portions.
Thinking of a trip to Barcelona? For up-to-the-minute hotel and restaurant recommendations, plus the best planning advice, check out our online Barcelona Travel Guide.