Already since July 3 and only until October 11, 2026 Kunsthalle Mannheim in Germany shows the exhibition Radical. Realities. Nouveau Réalisme and the Art of the 1960s. The show presents roughly 150 works by artists such as César, Christo, Yves Klein, Daniel Spoerri, Jean Tinguely and Niki de Saint Phalle, to name just a few. At Yves Klein’s apartment at 14 Rue Campagne-Première in Paris, on October 27, 1960 a group of artists around the art critic Pierre Restany, who created the idea and coined the term “Nouveau Réalisme”, signed the Déclaration...