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 Rietberg Museum in Zurich is the only art museum for non-European cultures in Switzerland and boasts an internationally renowned collection of works from Asia, Africa, America and Oceania.
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.