The Museum of Viljandi is a state-owned regional museum in Estonia. It was originally established in 1878, as the Ditmar Museum. The museum acquired the painting collection of Paul Kondas in 1986, when Rein Joost, the director of the museum, initiated the purchase of the paintings from Kondas’ relatives. Since then, these paintings have been in the possession of the museum, and since 2003 they have been exhibited in the Kondas Centre of Naive Art.