To the west of Charlie's checkpoint, along Niederkirchner, there once stood some of the most terrible institutions of the Third Reich - "Gestapo Headquarters, the Central Command of the Nazi SS Army, the SS Security Bureau and the Imperial Security Headquarters after 1939. These buildings no longer exist, but since 1997 a sad open-air exhibition called "Terrorist Sentences" has recreated the historic importance of the site and the brutal institutions that were then there. The exhibition is in German, but free English audio commentary is available at the information desk. Note that some of the pictures on display may be too bloody for children.