The Guggenheim Museum is Bilbao’s star architectural attraction. The building designed by Frank O. Gehry (winner of the Pritzker Prize for Architecture in 1989), is considered a masterpiece with its amazing half-sculpted curves and walls of yellow limestone, glass and titanium with their extraordinary play of light. Occupying an area of 10 000m², it houses one of the greatest collections of 20C art in the world, from classic avant-garde to abstract expressionism, Pop Art, and more modern trends.