<P> Neoclassical architecture was the preferred style by the leaders of the National Socialist movement in the Third Reich, especially admired by Adolf Hitler himself . Hitler commissioned his favourite architect, Albert Speer, to plan a re-design of Berlin as a city comprising imposing neoclassical structures, which would be renamed as Welthauptstadt Germania, the centrepiece of Hitler's Thousand Year Reich . </P> <P> These plans never came to fruition due to the eventual downfall of Nazi Germany and the suicide of its leader . </P> <P> In the new republic, Robert Adam's neoclassical manner was adapted for the local late 18th and early 19th - century style, called "Federal architecture". One of the pioneers of this style was English - born Benjamin Henry Latrobe, who is often noted as one of the first formally trained America's professional architects and the father of American architecture . The Baltimore Basilica, the first Roman Catholic cathedral in the United States, is considered by many experts to be Latrobe's masterpiece . </P> <P> The widespread use of neoclassicism in American architecture, as well as by French revolutionary regimes, and the general tenor of rationalism associated with the movement, all created a link between neoclassicism and republicanism and radicalism in much of Europe . The Gothic Revival can be seen as an attempt to present a monarchist and conservative alternative to neoclassicism . </P>

Who introduced neoclassical architecture to the united states