Warsaw Uprising, 8th September 1944. German demolition unit ("Sprengkommando") is preparing to blow up the Royal Castle in Warsaw. This photo was taken by Alfred Mensebach – German architect and volksdeutsch from Leszno who documented the planed destruction of Warsaw. His album with the photos from Warsaw Uprising was discovered in Leszno after the war by Polish authorities. Original description of the photo: “Blowing up of former Royal Castle on the Vistula river”.