Derzhprom (the State Industry Building) in Kharkiv.
Derzhprom, or the State Industry Building, is located at the side of the Freedom Square in Kharkiv. Built in the 1920s, it is the world's largest building in constructivist style. It was designed by architects S.S. Serafnnov, M.D. Feldher, and S.M. Kravets. Derzhprom made modernism the main architectural style of the Soviet Union for several years.
