In the beginning, the parallels between Gaudi and Guimard testify to Catalan modernism and the wealth of Art Nouveau in Paris. Rodin's prestige influenced the Catalan school of sculpture and Picasso's blue period refers to Toulouse-Lautrec, Manet and Degas. In the early 20th century, cubism was elaborated in Céret, the border town where Picasso, Braque, Gris, Herbin, Manolo etc. worked. During World War I, Barcelona was an encouragement for Parisian avant-garde, in particular Picabia, while a new classicism was embodied in the emblematic figure of Maillol's Méditerranée. The chronological circuit ends with two splendid representatives of Catalan surrealism, discovered by André Breton in the Paris of the Années Folles: Dali and Miro.
Under the banner of the Spanish Republic's pavilion at the 1937 World Fair, they joined Picasso- who exhibited Guernica – to celebrate revolt and threatened freedom.