Henry B. Clarke House
Clarke House may have been modeled on the home of William B. Ogden. The Clarke house is often described as the oldest surviving house in Chicago, although part of the Noble-Seymour-Crippen House in the Norwood Park neighborhood was built in 1833. (However, Norwood Park was not annexed to Chicago until 1893.) The Clarke House was designated a Chicago Landmark on October 14, 1970. It was added to the National Register of Historic Places on May 6, 1971.
Auditorium Building (Chicago)
Sullivan and Adler designed a tall structure with load-bearing outer walls, and based the exterior appearance partly on the design of H.H. Richardson's Marshall Field Warehouse, another Chicago landmark. The Auditorium is a heavy, impressive structure externally, and was more striking in its day when buildings of its scale were less common. When completed, it was the tallest building in the city and largest building in the United States.