Berlin-Hohenschönhausen Stasi Prison Complex Museum, Lichtenberg, Berlin, Germany

The prison was reopened by the East German Ministry of State Security (MfS), also known as the Stasi, in 1951. The Stasi added a new prison building (using prisoner labor) in the late 1950s. The new building included 200 prison cells and interrogation rooms. After the construction of the Berlin Wall in 1961, the prison was primarily used to house those who wished or attempted to leave the GDR, although political prisons were also held there. The prison was used until Die Wende in 1989 and officially closed on October 3rd, 1990.
The main prison also included a hospital wing, built in the 1950s and expanded in 1972. The hospital treated prisoners from all three Berlin prisons and sometimes from regional Stasi prisons as well. The hospital had up to 28 beds (in cells), an x-ray ward, treatment and operating rooms, a laboratory, a morgue, and outdoor exercise cells (called "tiger cages" by prisoners). In 1989, shortly before its closure, the hospital was run by Dr. Herbert Vogel with 28 full-time MfS staff.