meltwaterfalls:
Wiemar - Karl August Allee/ Freedom square was also named Adolf Hitler Platz
I don't think WHS Weimar can be linked with Hitler, as WHS in Weimar is not inscribed as a whole historic city but a series of monument by just only inscribed park, castle and palaces and sites related to Goethe and Schiller. Karl August Allee is not part of WHS.