Poland Auschwitz-Birkenau (#2360)

The area in front of me was where prisoners were corralled into an assembly line of undressing and then entering the 'showers'. There were multiple gas chambers here, each with similar design.

During the summer of 1944, the crematorium plus additional outdoor pits operated at full capacity of 20,000 bodies per day (https://en.wikipedia.org/wiki/Auschwitz_concentration_camp).