Robie House is Frank Lloyd Wright's Prairie-Style masterpiece. In 1991, it was recognized by the American Institute of Architects as one of the ten most significant structures of the twentieth century. Wright used all the technological advancements of the time for his client Frederick C. Robie, a businessman. With its bold horizontal lines, daring cantilevers, stretches of art-glass windows and open floor plan, the home has had an incredible influence on architectural Modernism. In 1957, the house was threatened with demolition and the 90-year-old Wright led a campaign to save it. Today the building is owned by the University of Chicago and operated as a museum by the the Frank Lloyd Wright Trust.