An aerial photograph of the Auschwitz–Birkenau complex taken on June 26, 1944 by the United States Air Force. The labels were supplied by the United States Central Intelligence Agency in 1978.

Four of the five triple muffle ovens from Crematorium 2, winter 1942. Copyright © Auschwitz–Birkenau State Museum.

Aerial photograph of Birkenau taken by the United States Air Force on August 25,1944. Note the line of prisoners moving toward the gas chamber, and the four dark holes in the roof of Crematorium 3 (bottom right).

Crematorium 3, June 1943. Copyright © Auschwitz–Birkenau State Museum.