Barcelona is one of Europe’s largest and most successful ports and one of the world’s leading cities in art and architecture. Barcelona is Spain’s second largest city and one of the most important ports in the Mediterranean. Visitors to this exciting Spanish city flock to the Barri Gotic (old town) and to La Rambla, originally the site of the ancient city walls and now the major promenade area of the city. Beyond Placa Catalunya, the Eixample (Ensanche) boasts a wealth of Art Nouveau and Art Deco architecture. Museums worth visiting include the Picasso Museum, the Museum of Catalan Art, the Maritime Museum, the Peldralbes Monastery and the Zoological Museum. Barcelona is also famous for its excellent Romanesque art and the work of the visionary Catalan architect, Antonio Gaudi, who built one of the world’s most extraordinary churches, the Sagrada Familia. He is also famed for building Parc Guell, a garden city which he never completed, featuring exquisite tiled pavilions and fountains, and overlooking the city and port.