Soviet pavillion (Paris Expo, 1937) Boris Iofan, architect. Of course, Iofan is no Speer. The similarity between the two monuments has to do with how Neo-Classicism becomes a style that can easily define totalitarian regimes. Stalin's love for Neo-Classical architecture (see this link) harks back to (irony of ironies!) a New York building designed by McKim, Mead & White.