Museu Nacional d'Art de Catalunya, Fundacio Joan Miro, MACBA (Museu d'Art Contemporani de Barcelona), Museu Picasso- (there is a pass called Articket BCN- 1 ticket (30euros)= 6 museums www.articketbcn.org) Museu Europeu D'Art Modern, Museu del Disseny de Barcelona
You will never get bored in Barcelona. You can find anything from VIP parties to parades to sporting events. There are also many religious events such as pageants and festivals, the most known is in September- the Festes de la Mercè, in honor of the patron saint of Barcelona.
Walking Tours (best way to tour the city)- Gothic Quarter: one of the best preserved medieval districts in the world., the modernism tour- by visiting the Quadrat d'Or in the Eixample district, you can admire works by renown architects such as Gaudi, Domenech i Montaner and Puig i Cadafalch, Touristic bus (another great way to see the city, I recommend you do an entire tour and then go back to the places that interest you the most. Recommendations: Take the Blue line and then change to the red line) Barcelona's Cathedral, Plaça de Catalunya (most tours depart from here), Plaça de Espanya (one of Barcelona's most important squares, built on the occasion of the 1929 International Exhibition, held at the foot of Montjuïc, in the Sants-Montjuïc district.), Fountains of Montjuïc (Light and music show- best to see during the summer in the afternoon), Museu Nacional d'Art de Catalunya (national museum of Catalan visual art- http://www.museunacional.cat/en), Mirador de Colom (Columbus Monument, located at the lower end of La Rambla), Port Vell (waterfront harbor, many good restaurants are along the port), Barcelona Aquarium (www.aquariumbcn.com), Park Güell (is a public park composed of gardens and architectonic elements designed by Gaudi, this is considered one of his major works...offers great views of the city) , Poble Espanyol (displays the finest of Spanish architecure and craftmanship), Sagrada Familia (Roman Catholic Church that was never completed by Antoni Gaudi, construction started in 1882 and is not planned to be completed until 2026), Casa Batlló (located in the heart of Barcelona, one of Gaudi's most famous buildings), Casa Milà (also known as La Pedrera designed by Antoni Gaudi), FC Barcelona Stadium (If you are a soccer fan, you must go to a game!), Mies Van Der Rohe Pavilion, Museu de Cera (Wax Museum), Reial Monestir de Santa Maria Pedralbes (Monastery of Pedralbes-one of the finest examples of Catalan Gothic in Barcelona), Watersports (banana boat, cruises, hoverboard/flyboard, kayaking, sailing...http://www.lifestylebarcelona.com/water-activities-barcelona/107) , Barcelona Casino (located at the Olympic port, also where most of the famous touristic night clubs are located), Tibidabo Panoramic View (Tibidabo is a mountain overlooking Barcelona, Sagrat Cor- Roman Catholic Church- is at the summit), Telefèric de Montjuïc (cable car that takes you to the scenic view at Montjuïc), Jardí Botànic de Barcelona (Barcelona's botanical gardens), El Born CC (located in the heart of Born quarters, this massive warehouse holds one of the most unexpected secrets of Barcelona: the preservation of the ruins of the old castle of Born).
Purificación García, Dolores Promesas, Boo, Le monde Sophie, La Roca Village (If you like outlets, this is a good one- they offer luxury brands such as Carolina Herrera, Escada, Maje...http://www.larocavillage.com/), Puigg, Andres Sarda, La Rambla (this is more for souvenirs), Passeig de Gràcia (one of the major shopping avenues of Barcelona), Coquette-born to be beautiful, La Comercial, Blow, Le Swing Vintage. If you have never been to Spain before I recommend going to Zara (a million times better in Spain than the U.S, they offer very good basics)- if you are looking for something high-end I recommend going to Uterqüe and Massimo Dutti (these are considered the higher quality brands of the Inditex brands)
Furniture/Decor: Boulevard dels antiquaris (for antiques and vintage pieces, this building offers over 70 stores!), Vinçon (modern designer pieces), Gris Home (if you are looking for basics), Konema (good storage accessories).
Oma, Granados, Lateral, La consentida, La Poma, El Nacional (this one place offers several types of restaurants, get there early because it gets very crowded!), Cuidad Condal (be willing to wait in line for a while), Mercat St. Josep (market along La Rambla, offers a variety of local products, very touristic), Artesans (tapes & tastets- you have to try Tapas while in Barcelona), La Taguara (areperia- flatbread made of cooked flour- you can add additional ingredients, very good if you are on-the-go), Districte born, Pizza Napolitana (authentic Italian, delicious!), George Payne (Irish bar- good place to go to watch soccer games), Ceviche 103 (amazing Peruvian restaurant), Cerveseria Catalana (one of the best places for tapas in Barcelona, arrive early to get table, this place is always full!), Brunch at Carpe Diem, Taller de Tapas, La Plassohla (gastronomic & tapas bar- I love the design of this restaurant), Cer&Cle (in Reial Cercle Artistic, near Barcelona's Cathedral, the location is really great!), Maka Maka (the best hamburgers and the fries are legendary), Pez Vela (this is located near the W Hotel, really great location and good food), Restaurante Amar (Castelldefels)
Icebarcelona (bar made entirely of ice, they even serve your drink in a glass made of ice)
Nightlife: Sutton, Opium, Razzmatazz (if you are into very varied music, especially electronic, this is the place for you), el Bombon (good bar with exceptional cocktails), Sky Bar (it is worth going just for the view)