La Sagrada Familia: The iconic work of the famous architect Antoni Gaudí, construction of La Sagrada Familia began in 1882 and is still ongoing. The construction is characterized by dozens of symbols, with the central tower known as the "Tower of Christ" being a notable example. Standing at 170 meters, it is one meter shorter than Montjuïc Hill.

Park Güell: One of Antoni Gaudí's works that adorn the city of Barcelona, Park Güell is located on the "el Carmel" hill, northwest of the city, and attracts thousands of visitors daily. The park was created by entrepreneur Güell with the intention of building an exemplary suburb. In a barren piece of land, he instructed Gaudí to create the infrastructure for a city with gardens.

Casa Milà (La Pedrera): Built between 1906 and 1910 for the Milà family, Casa Milà is one of Gaudí's major residential buildings and one of the most imaginative houses in architectural history. The building is a sculpture itself, with an impressive facade made of mountain stone and wrought-iron balconies without straight lines.

Casa Batlló: It is one of the most unusual houses in Europe and is located on one of the most aristocratic streets in Barcelona. Antoni Gaudí designed it in 1905, giving it his own Catalan version of the Art Nouveau architectural style.

Camp Nou Stadium: The stadium is the home of the football team FC Barcelona and was built in 1957. It has a seating capacity of 99,354 spectators. You can visit the stadium either by attending a Barcelona match or by taking a tour of the stadium and the team's museum.

La Rambla: It is a pedestrian street in the heart of Barcelona that connects Catalonia Square with the Christopher Columbus Monument by the sea. The length of the promenade is 1.2 kilometers and it is a classic walk for tourists and locals alike.

Picasso Museum: The museum attracts over 1 million visitors per year as it houses the largest collection of artworks by the famous painter. The artworks are displayed chronologically, from Picasso's early works to his later ones. The Picasso Museum is located in the old town.