Planning a trip to Barcelona? Wondering what to see in the Catalonian capital? Barcelona is a city that deserves to be fully explored. Every corner of this Catalonian capital offers something unique, making a trip here an unforgettable adventure. From the stunning works of Antoni Gaudí, like La Sagrada Família, Park Güell, Casa Batlló, and Casa Milà, to the charming streets of the Gothic Quarter – each place has its own character and history.