In the 1960s the Rhineland was an important center of a revolutionary development in art: a new, internationally connected generation of artists rebelled against traditional art. They used everyday life as a source of inspiration and everyday objects as the materials for their works.They went out into the urban environment. They broke down the boundaries of art disciplines and worked with musicians, writers, filmmakers, and dancers. At the epicenter of this exciting time, the Cologne restorer Wolfgang Hahn (1924-1987) began to acquire new artworks and assemble them into a multilayered collection with examples of Nouveau Réalisme, Fluxus, Happenings, Pop Art, and Conceptual Art. Exhibition: Museum Ludwig, Cologne, Germany (24.06.-24.09.2017) / mumok - Museum Moderner Kunst Stiftung Ludwig, Vienna, Austria (10.11.2017-24.06.2018).