This is a picture of Westerbork Transit Camp. It was located in Holland and opened by the Germans in July 1942. It was an official transit camp where the SS would determine who was able to work and who would be sent to the extermination camps.
This is a picture of the manor house at Chelmno that became the site of the first Nazi extermination camp in Poland in December 1941. Estimates are between 150,000 to 300,000 Jews were killed at this camp.