Barcelona aquariumr r see one of the best collections of mediterranean sea life in the world at barcelona aquarium and find out why itandrsquos the most visited tourist attraction in barcelonar r r r meet all kinds of weird and wonderful ocean creatures at one of europeandrsquos biggest aquariumsr r barcelona aquarium landrsquoaquandagraverium de barcelona is home to more than 11 000 creatures from 450 marine speciesr r get to know the most exciting and secretive of sea creatures inclu