Spandau Citadel, built in 1594, the 1848 St. Marien am Behnitz Catholic church designed by August Soller, and Spandau arsenal, Germany's arms development center until 1919, now a museum. That arsenal's Spandau machine gun inspired the slang "Spandau Ballet" to describe dying soldiers on barbed wire during the First World War, and later was applied to the appearance of Nazi war criminals hanged at Spandau Prison. The notorious prison, built in 1876, held Nazi war criminals after World War II until 1987, when it was demolished after the death of the last surviving prisoner, Rudolf Hess. In 1979, the English New
Spandau Prison Hess during their confinement at Spandau. The prisoners were assigned numbers corresponding to the order in which they were first assigned cells and were, by regulation, referred to by their number only. Speer, number five, was the most ambitious of the prisoners, dedicating himself to a rigorous physical and mental work regime, then scheduling "vacations" of two weeks in length every few months where he relieved himself from his self-imposed routine. He secretly wrote two books, a draft of his memoirs entitled "Inside the Third Reich" and a collection of diary entries, "." Speer also kept busy with architectural works,