Sachsenhausen was established in 1936 on the outskirts of Oranienburg as a model camp — designed from scratch by the SS to serve as a template and training ground for all subsequent camps in the Nazi system. Over the following nine years, more than 200,000 people were imprisoned here: political opponents, Jews, Soviet prisoners of war, homosexuals, Jehovah's Witnesses, and ordinary people the regime found inconvenient. At least 30,000 died within the perimeter from execution, starvation, disease, and forced labour.
The memorial site preserves the triangular camp layout, the station Z execution area, reconstructed prisoner barracks, the infirmary buildings where medical experiments were conducted, and several permanent exhibitions covering the camp's history from 1936 through 1945. The scale of what happened here is conveyed as much by the geometry of the place — the immense triangular roll-call square visible from the entrance tower — as by any individual exhibit. Allow at least three to four hours; the full circuit is considerable, and the material demands time and attention.