1989 the public commemorated the history of the centre. On 9 June 2000 a memorial center for the T-4 Program was opened in the house. It is managed by the Stiftung Sächsische Gedenkstätten zur Erinnerung an die Opfer politischer Gewaltherrschaft (Foundation for Memorial Institutions in Saxony for the Victims of Tyranny). Since 1970, the building has again housed disabled people. After the establishment of a rehabilitation center, a workshop for disabled people was opened in 1991. Bilfinger Berger worked on the refurbishment of Sonnenstein Castle in a project completed in 2011. Literature Stiftung Sächsische Gedenkstätten zur Erinnerung an die Opfer politischer Gewaltherrschaft (ed.), Pirna-Sonnenstein : Von einer Heilanstalt zu einem Ort nationalsozialistischer Tötungsverbrechen (2001). References External links Memorial Hotel School Castles in Saxon Switzerland Pirna