Probably Barcelona's most notorious building, the still under construction Sagrada Familia is absolutely amazing. Construction on Antoni Gaudi's legacy began in the late 19th century and to this day is still ongoing. That said, the Cathedral is just about done and the architecture, design, towering spires and setting are not to be missed by any visitor to Barcelona.
You can find more information about La Sagrada Familia at www.sagradafamilia.org
The Rambla is a market boulevard that really starts moving around 11 a.m. and is one of the main shopping and tourist arteries in Barcelona. You can find virtually all you are looking for. Art, clothing, newspapers, and even pets are all on sale. The Rambla is great for a stroll, people watching and checking out all the artisans and stalls on display.
Admire some of the best paintings from the Spanish master of Cubism, Pablo Picasso. A great selection of his masterpieces are on display in the museum, a tribute to one of the most admired and least understood masters of the brush.
The park is Gaudi designed and was meant to be a classy district but was never actually finished.. The park is named after Eusebio Guell, a huge Gaudi fan and supporter.
Parc de la Ciutadella
With Barcelona's zoo, the modern art museum and a Guadi fountain, the park offers a chance to get away from the concrete and maybe catch some rays to top up that tan. The park is hugely popular with locals and tourists alike and features a little lake. At the north entrance is a small version of the Arc de Triomphe with plenty more statues and things within the park itself.
The Gothic Quarter is located near La Rambla and is Barcelona's oldest residential area. As can be seen from the name, the architecture in the Quarter is Gothic but the Roman influence on Spain, and in this case Barcelona, is visible between Placa de la Catedral and Placa St Jaume.
Santa Maria del Mar
The city's basilica spans history for over a millenium. The first references were made to the building in 998. Located in the Barri Gothic, the basilica is the work of Berenguer de Montagut.
If you prefer to just go for a stroll, you can go for a walk along the wooden boardwalk Barcelona boasts along its coast.
The mountain, or hill of Montjuic is on the outskirts of Barcelona. The area includes the Castle de Montjuic dating from the mid 17th century with the later additions added in the 18th century during the war of the Segadors. Also in Montjuic are the Olympic village and an archeological museum. A trip to the area is a good day out if you have that extra day in the city. Don't forget to see the Magic Fountain, it's beautiful and is at the top of Avinguda Maria Cristina.
Built for the 1992 Barcelona Olympics, this world-class sports facility will impress even the best athletes. The Olympic village is located in Montjuic.