Museu de Ciències Naturals de Barcelona

Designed by Puig i Cadafalch, the building is a fine work of Modernism. Check the detailed photos and explanation of facade sculptures. It also has a shop that sells fine chocolate (the Amatller family made its money out of cocoa).

This museum mainly exhibits exponents, which were imported by Catalan sailors as they explored the new world. Free on the first Sunday each month (11:00 to 15:00)

The museum has limited opening hours but the park it is situated in is also interesting. Check website before going to the museum as it will eventually relocate to The Can Bagaria building.

Modernist design by Lluís Domènech i Montaner is a UNESCO World Heritage site, a masterpiece of Catalan's modernist architecture. This auditorium designed by Ramon Muntaner is the most important Modernist example in Ciutat Vella. It was the headquarters of the Orfeó Català, the oldest Catalan choir. The most beautiful part is the stalls with its fine detailing, although all the building is impressive. There are plenty of allegories about music and Catalonia, since the Orfeó Català is strongly bounded with the Catalan Renaixença, the romantic movement that tried to recuperate the Catalan history, language and traditions. It is also the best place in Barcelona to listen to symphonic music.

Provides a beautiful panorama view over the rest of the city. The Montjuic Castle is in the Montjuic hill. From the Montjuïc Castle, take the harbor cable car to Barceloneta for more splendid views.

Placa d'Espanya was created for the 1929 World Exhibition, on a site once used for public hangings. The fountain in the center of the square is a great attraction and plays music during the summer. Plaça Espanya is located at the base of Montjuic hill.

Urban park created from redeveloping industrial land. It covers 14 hectares and includes seven areas like a children's play area, a lake with sculptures and a central plaza.

Barcelona's most popular and famous attraction, the Sagrada Família is a testament to Antonio Gaudi's modernist style and unlike any other church in the world. The texture and detail on the façades are intricate and incorporate forms seen in nature as much of Gaudi's work does. The inside is huge — it's estimated that it can hold 13,000 people — with vaulted ceilings and columns designed to be reminiscent of trees. The church is still under construction, but the central nave, apse and crypt are open. Seeing the Sagrada Família at night with lights on is impressive — this is the time when you understand why people say that it is built of bones.

This square is famous for the nightlife and the uniform architecture, and features fountains and palm trees. It was built during the 19th century on the site of a monastery, after the Mendizábal law expelled the monks. After some years Antoni Gaudí designed the streetlights which are still there. It has lots of activity during the day, thanks to the many terraces of the bars and restaurants.

This street has the biggest collection of Gothic houses in Barcelona. In amongst these houses is the Picasso Museum, which is definitely worth a visit. There are also smaller museums along the street, and many tapas restaurants though they may be more expensive on this street.

One of the most representative examples of Catalan Gothic architecture, it features a sombre but beautiful interior. The upsweeping verticality and lightness of the interior are especially surprising considering the blocky exterior surfaces. Built between 1329 and 1383, it was once was home to a Christian cult in the late 3rd century. The church is dedicated to Saint Mary of the Sea, since the quarter was dedicated to the jobs related to the sea, from sailors to harbor works, commerce, even coin exchange. The inside was burned during the civil war, but it is still very interesting. Next to the church, you can see a monument, called Fossar de les Moreres, which is the place where many fighters where buried after the Barcelona defeat in 1714, so it is an important monument for Catalan nationalism.

A beautiful Gothic monastery near the university, there are a museum which depicts the monastery life, a church, and a marvelous chapel covered with medieval frescoes.

This former hospital is an architectural masterpiece that is now open for visitors. Inpatient wards (and most outpatient facilities) have been moved to a new building of Nou Hospital, but in terms of touring the area, that makes it all the easier. One of "small hidden features" is a network of underground passages where small carriages can be seen, you can get there near WCs on a central square, between Banc de Sang and Quiròfans.

Much to the dismay of Mickey Mouse aficionados, Disseny is Catalan for "design", not "Disney". The "Disseny Hub" houses the amalgamated museums focusing on applied arts and design, including Museu de les Arts Decoratives, Museu de Ceràmica, Museu Tèxtil i d'Indumentària and Gabinet de les Arts Gràfiques. The new building has an intricate, multi-level structure, with the protruding tower overhanging the Praca de les Glories roundabout.

The first building Gaudi built in Barcelona. It has been opened as a museum. It's possible to walk the whole monumental enclosure, including the garden and the interior of the building. In UNESCO World Heritage Sites list since 2005.

Has the single best collection of Romanesque art in the world, and a fine Gothic collection as well. Includes the Pantocrator from the Taüll Romanesque church. The building itself is also very beautiful.