Berlin – General Pape Strasse
In March 1933, the SA established a prison for political opponents in former barracks at General Pape Strasse in Berlin-Tempelhof. In the wake of the Reichstag fire in February 1933, the Nazis were able to arbitrarily arrest political opponents and place (prison) them in what was called a protective detention center. The barracks at Pape Strasse worked perfectly well for this purpose, and until December 1933, when the prison was closed, about 2,000 people had been imprisoned.
Current status: Preserved with museum (2011).
Address: Werner-Voss-Damm 54, 12101 Berlin.
Get there: Metro to Südkreuz Station.
Follow up in books: Kogon, Eugen: The Theory and Practice of Hell: The German Concentration Camps and the System Behind Them (2006).
This prison was a typical "wild" concentration camp that arose after the Reichstag fire. The "wild" concentration camps were not official concentration camps but arose arbitrarily wherever the Nazis found suitable places to set them up. But virtually all of them were dismantled already in 1933 or when the SS took control of the concentration camps in the spring of 1934.