A group portrait of some of the participants in the uprising at the Sobibor extermination camp. Poland, August 1944. Photograph »

Crematorium 4 under construction. This crematorium was later destroyed during an uprising in the camp. Auschwitz-Birkenau, Poland, winter 1942-1943. Photograph »

Prewar portrait of Ala Gartner, who was later imprisoned in the Auschwitz camp. She participated in the camp's resistance movement and was hanged for her part in smuggling the gunpowder that destroyed Crematorium 4 at Auschwitz. Bedzin, Poland, 1930s. Photograph »