A Secret Police For The Nazis
The Gestapo was a secret place where secret police that worked for the Nazi hid. This place was very important for the Nazi because it helped them to locate Jews. This and other places similar to this one was like the secret weapon for Hitler to chase down Jews and the other groups of people he and his army was looking for.
This place was unique because it looked like a normal house. When the groups of people that the Nazi were looking for were trying to hide, hey hid in houses like this one. But they were found by the Nazi because they didn't know this was a secret place where Nazi police were.