It was at Petschek Palace in Prague, Gestapo in Bohemia-Moravia had its headquarters between 1939 and 1945. Thousands of Czech resistance fighters, Jews or Czechs suspected of anti-German activities were interrogated, tortured or murdered in the building. The headquarters in most cases served as a staging point for the prisoners on their way to the small fortress in Theresienstadt.
Current status: Preserved with memorial tablet (2010).
Location: 50°04'52.63" N 14°25'53.74" E
Get there: Metro to Hlavni nadrazi station.
Follow up in books: Höhne, Heinz: The Order of the Death’s Head: The story of Hitler’s SS (1969).
The building is not a museum but is used for other purposes. There is a small memorial tablet on the corner of the facade.