Anchoring the upper Raval is the huge, luminous Museu d’Art Contemporani de Barcelona, known as MACBA. Once inside, a series of swooping ramps from the ground floor to the fourth floor afford continuous views of the square below – usually full of careering skateboarders. The collection represents the main movements in contemporary art since 1945, mainly in Catalunya and Spain but with a good smattering of foreign artists as well. The pieces are shown in rotating exhibitions, so you may catch works by Joan Miró, Antoni Tàpies, Eduardo Chillida, Alexander Calder, Robert Rauschenberg or Paul Klee. Joan Brossa, leading light of the Catalan avant-garde “Dau al Set” group, has work here, too, as do contemporary Catalan conceptual and abstract artists.