Kassel, Museumsnacht (Night of the Museums), September 2011 Germany , Kassel Museumsnacht Technikmuseum KasselShare: Newer Post Kassel, LICHT(e)WEGE (Light Installations on Siebenbergen Island), September 2011 Older Post Potsdam, Park Sanssouci (Sanssouci Gardens), September 2010