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The Eighth Doctor took Anji and Fitz to see the Eiffel Tower in the summer of 1937. Close to the Tower, the Doctor told Fitz and Anji that Adolf Hitler had wanted to have his photograph taken atop the Tower to prove that he had conquered Paris.
However, the Tower's keepers had made the lifts and stairways impassible to prevent German entry, so he had to have a press conference in the shadow of the monument, instead. (PROSE: History 101)