Lastminute.com reviewer Srinathb adds, "Really enjoyed visiting Barcelona and the weather was good. The transport is very structured and organized in Barcelona. All the historic/tourist attractions are easily commutable with metro/bus.
If you are visiting Sagrada Familia (it's a must), make sure you book tickets online.
Sightseeing places: Sagrada Familia, Park Guell, Gaudi 4D experience, FC Barcelona football stadium tour + VR experience, Big fun museum/illusion museum, Montjuic cable car, Montserrat day trip, La Rambla, Gothic quarters, place the Catalunya.
Romantic experience: Cable car experience.
Kid's experience: Big fun museum, Cable car, FC Barca visit.
I liked: Everything."