Located on the northwestern side of town, this château dates from 1756 and was once occupied by Madame de Staël. The museum displays what the artist Jean Dubuffet called art brut in the 1940s. This curious mélange of artwork was collected by the painter from prisoners, the mentally ill, and the criminally insane. It's like a bizarre twilight zone of art, often dubbed "psychopathological," especially the art by schizophrenics. Dubuffet despised the pretentiousness of the avant-garde art scene around him, and as a form of protest decided to begin this collection of the works of "nonartists," many of whom he found superior to the more established artists of his day.