A Führer city, or Führerstadt in German, was a status given to five German cities in 1937 by Adolf Hitler, the dictator of Nazi Germany. The status was based on Hitler's vision of undertaking gigantic urban transformation projects in these cities, and executed by German architects including Albert Speer, Paul Ludwig Troost, German Bestelmeyer, Konstanty Gutschow, Hermann Giesler, Leonhard Gall and Paul Otto August Baumgarten. More modest reconstruction projects were to take place in thirty-five other cities, although some sources assert this number was as high as fifty. These plans were however not realised for the greater part because of the onset of the Second World War, although construction continued to take place even in wartime circumstances at Hitler's insistence.