The Spandau Citadel in Berlin has added two Nazi-era sculptures to its permanent collection of vintage monuments. Nazi artist Josef Thorak created the two “Striding Horses” (known in German as “Schreitende Pferde”) for Adolf Hitler’s New Reich Chancellery in Berlin. Both sculptures are in need of restoration. One of them has already been placed in the permanent exhibition, where visitors can view the statue and witness the restoration process firsthand. Commissioned by Hitler at the height of his power, the colossal twin “Striding Horses” had stood in the garden of Hitler’s seat of government from 1939 to 1943. They were...