The building of the Prison was built for the convict of the noble youth. It was named "Theresianum" for the honour of the queen. It is still a functioning prison. It gained notoriety during communism and the Horthy regime for being one of the cruelest prisons in the area and there are several famous escape stories. Today you can get eerily close to the building and see the guard towers, as well as a memorial for those who were imprisoned and died there.