Barcelona in One Day Sightseeing Tour. Combine two of Barcelona’s most popular tours and gain a comprehensive picture of the Catalonian capital with this Super Saver package. In the morning, delve into the remarkable architecture of the Barri Gòtic (Gothic Quarter) and enjoy sweeping city vistas from the summit of Montjuic Hill while visiting the ancient Montjuic Castle. Complete the day with an afternoon tour of Antoni Gaudi’s modernist masterpieces; marvel at the architectural eccentricity of UNESCO-listed La Sagrada Familia, Casa Batlló, La Pedrera and Park Güell and hear the story behind the artist whose work is so prevalent in Barcelona. Book this Tour and Save 7%! Barcelona in One Day Sightseeing Tour.