International Style. The unadorned walls, casement windows that are flush with the exterior and wrapped around one corner, flat roof and asymmetry of this small house in the 5500 block of North Illinois Street peg it as a rare-to-Indianapolis International Style residence. Mies van der Rohe, who directed the famous Bauhaus design school in Germany in the 1930s, made this style famous. His less-is-more philosophy is beautifully expressed in this simply elegant house probably architect-designed and built before 1940. International Style made its way to downtown Indianapolis in the much larger-scale City-County Building in 1962.