Manhattan Building

The Manhattan Building is a 16-story building at 431 South Dearborn Street in Chicago, Illinois. It was designed by architect William Le Baron Jenney and constructed from 1889 to 1891. It is the oldest surviving skyscraper in the world to use a purely skeletal supporting structure. The building was listed on the National Register of Historic Places on March 16, 1976, and designated a Chicago Landmark on July 7, 1978