Experience the best of Barcelona with top-rated tours and excursions on Viator. Skip the line at the Sagrada Familia with a guided tour and tickets, discover Gaudi's masterpiece on a decoded guided tour, sail the coast on a catamaran cruise, or visit three countries in one day with a trip to Andorra and France. The best-selling Sagrada Familia tour is rated 4.7 by over 4,700 travelers, and every tour includes free cancellation. Prices start from just $16 per person and vary by group size.