The Palau Nacional is a neo-Baroque palace located at the foot of Montjuic hill, and was built between 1926 and 1929 to be the main building of the International Exhibition of Barcelona. The Museu Nacional d'Art de Catalunya which is housed in the Palau Nacional was built for the 1929 World's Fair. It has the world's largest collection of Roman frescoes and has one of the best collection of Catalan modern art.