Sachsenhausen was a labor camp outfitted with several subcamps, a gas chamber, and a medical experimentation area. Prisoners were treated harshly, fed sparingly, and killed openly. Those held captive in Sachsenhausen were the men and women which the Third Reich wanted dead, not just because of their religion, but because of their political beliefs and their power over those who listened to them. After World War II, when Oranienburg was in the Soviet Occupation Zone, the structure was used by the NKVD as NKVD special camp Nr. 7. Today, Sachsenhausen is open to the public as a memorial for the crimes committed within its walls.