Since 1951 the former grammar school at the city park houses around 600 pictures and drawings by Swiss, German and Austrian artists. We owe this to the Winterthur art patron Oskar Reinhart.
The Tinguely Museum, located directly on the Rhine, was designed by the Ticino architect Mario Botta and houses the largest collection of works by Jean Tinguely (1925-1991), one of the most innovative and important Swiss artists of the 20th century.
Since the 1970s old farmhouses, stables, bakehouses or barns are no longer demolished when they are due to be replaced by modern buildings. Instead, the buildings are dismantled stone by stone, and rebuilt in the Ballenberg Open Air Museum.
The Paul Klee Center, which opened in 2005, is dedicated to the person, life and work of Paul Klee (1879–1940). It houses the worldwide largest collection of Klee's works. Paul Klee is regarded as one of the 20th century's most important artists.