 It features both Prairie School and Usonian design.Five of these houses were designed by Walter Burley Griffin and Marion Mahony Griffin, two by Francis Barry Byrne, and others by William Drummond, Einar Broaten, and Curtis Besinger.In addition to Prairie Style architecture, Mason City is home to extensive Victorian, Craftsman, and Bungalow style homes, as well as historic commercial structures dates from between 1892 and 1940, including the Brick and Tile Building at the intersection of State and Delaware Streets.