ArchitectJ. S. SirénFinnish architect (1889–1961), 1889–1961Photograph of one of their buildings · Estormiz · CC0 · Wikimedia Commons4 buildingsGrand Duchy of FinlandFurther readingWikipedia article↗BuildingsEduskuntataloHelsinki, FinlandIntiö Water TowerOulu, FinlandKolmiotaloOulu, FinlandUniversity of Helsinki main buildingHelsinki, Finland