The grey bus is a monument for the victims of the "Euthanasie" 1940/41 in the former remedial institution of Weißenau in Ravensburg, Baden-Württemberg, Germany.
691 patients of the remedial institution of Weißenau were murdered in the course of the so-called "euthanasia action". To keep up the memories of the history the city of "Ravensburg" and the ZfP in summer 2005 have offered an art competition. „The monument of the grey busses“ was given to the public at the official anniversary for the victims of the national socialism on the 27th of January 2007.
The hardly tangible should be brought by the memorial in memory: In the national socialism ill and handicapped people were valid psychically as a burdon, more badly still: as "unworthy to live". In 1939 Hitler remitted personally the order for the so-called "euthanasia action". Aim: The people should be released „from the burdon of the mental patients“ - by systematic murder.
Subsequently became in not even two years, between January, 1940 and August, 1941, in Germany 70,000 psychically handicapped people murdered. Also the remedial institution of Weißenau at that time was concerned. In eleven transports 691 patients were deported in the grey painted busses of the „charitable sick person's haulage contractor“ to Grafeneck and were murdered on the same day in the gas chamber.