The following pictures are examples of architecture built in the Soviet Constructivist style, a style founded by the Vesnin brothers (Aleksandr, Leonid, and Viktor) along with Moisei Ginzburg between 1923-1925.  Officially, the Society of Modern Architects (OSA) was the main organ for all Constructivist architecture.  However, I have also included pieces which clearly exemplify the Constructivist style, even if the architects involved were not technically members of OSA.  Both blueprints and photographs of the eventual realizations of their plans are shown here:

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