Forced labor in Neuengamme concentration camp. Germany, 1940. Photograph »

Prisoners at forced labor build the Dove-Elbe canal. Neuengamme concentration camp, Germany, 1941-1942. Photograph »

Prisoners at forced labor in the brick factory at Neuengamme concentration camp. Germany, date uncertain. Photograph »

View of Neuengamme concentration camp. Germany, wartime. Photograph »

A view of the quarry at the Mauthausen concentration camp, where prisoners were subjected to forced labor. Austria, 1938-1945. Photograph »

Forced labor in the quarry of the Mauthausen concentration camp. Austria, date uncertain. Photograph »

Forced labor in the quarry of the Mauthausen concentration camp. Austria, date uncertain. Photograph »

SS chief Heinrich Himmler leads an inspection of the Mauthausen concentration camp. Austria, April 27, 1941. Photograph »

View of the stone quarry in the Gross-Rosen camp, where prisoners were subjected to forced labor. Gross-Rosen, Germany, 1940-1945. Photograph »

Prisoners at forced labor in the Siemens factory. Auschwitz camp, Poland, 1940-1944. Photograph »

Soviet prisoners of war arrive at the Majdanek camp. Poland, between October 1941 and April 1944. Photograph »

View of barracks in the Majdanek camp. Poland, date uncertain. Photograph »