Two out of the three chambers in the crematorium at Auschwitz I. When in operation, the crematorium had a capacity for incinerating 350 bodies per day. In each chamber 2-3 bodies were placed. In 1941 and 1942 Soviet prisoners of war and Jews from the ghettos established by the Nazis in Schlesien were murdered in this crematorium.

The crematorium was in use from 1940 - 1943. The ashes were used as fertilizer or as filling in nearby creeks and ponds. The last gassings took place in November 1944. Just prior to the liberation of the camp the SS dismantled and blew up the crematoriums. The ruins can be seen today.