SEVC Recommend you to visit in Barcelona:
Poble Espanyol (for kids and families)
El Poble Espanyol was built in 1929 for the Barcelona International Exhibition as the pavilion dedicated to art. You are able to move through streets and squares all over Spain without moving from the same village. This open-air museum with narrow streets hide a whole world full of life: workshops, shops, museums, restaurants and green spaces for playing.
For more information regarding Pueblo Espanyol visit:
www.poble-espanyol.com/pemsa/en.html
Visit to the Museum of Futbol Club Barcelona
The museum offers the chance to really get to know the stadium by taking a tour called "Camp Nou through the installations", which takes visitors into the opposition changing rooms, down the tunnel and onto the pitch area
For more information visit:
www.fcbarcelona.com
Barcelona Tourist Bus
The double-decker “Barcelona Bus Turístic” is the most convenient way to discover the city's most interesting and attractive sights. You can get on and off the bus as many times and for as long as you like at any of the 44 stops. Combine 3 routes with the same ticket -you have six transfer stops- and...let yourself be transported! An informative guide about each of the stops is issued with the ticket, as well as a discount voucher booklet you can use at the main sights and landmarks.
For more information visit: 
www.tmb.net/en_US/turistes/busturistic/busturistic.jsp
Museum of Science (Family Tour)
The modern science museum in Barcelona, CosmoCaixa, is designed to stimulate the scientific knowledge and opinion of the community. Kids can learn with: the Bubble Planetarium pleases kids aged three to eight, and the wonderful Clik (aimed at ages three to six) and Flash (for ages seven to nine) introduce kids to science through games. Toca Toca! ('Touch! Touch!') educates children about which animals and plants are safe and which should be avoided.
For more information visit:
www.cosmocaixa.com
Barcelona Aquarium (Family Tour)
One of the largest aquariums in the world featuring Mediterranean undersea life. An 80-metre, walk-through glass tunnel under the vast oceanarium, and 20 giant, themed tanks, will bring you face to face with sharks, sea horses, 8,000 animals and over 300 different species of plants.
For more information visit:
www.aquariumbcn.com
Port Aventura (Family Tour)
Port Aventura, an amusement park located a one hour from Barcelona, near Tarragona. An ideal place to spend one the whole day with family. You’ll find a variety of shows. Thrill to exiting adventures at Fort Frenzee in the Far West or the Can Can in the Saloon. Marvel at the exotic dances of Aloha Tahiti and the Birds of Paradise in Polynesia. Relax to the strings of the mariachi orchestras in La Cantina Mexicana. Discover the mysteries of China in Sol de Oriente. And be seduced by the calm Mediterranea sunshine.
For more information visit:
www.portaventura.es

Dalí's Town and Girona (Catalunya Bus Turistic)
One-day trip that takes you to two major towns in northern Catalonia: Figueres, with its landmark Teatre-Museu Dalí, and Girona, a monumental city, which is home to one of Europe’s best-preserved Jewish quarters.