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.
One North LaSalle
The Chicago Board of Trade Building was the tallest building in Chicago for some 35 years by conventional definitions. At 530 ft and 48 stories, One North LaSalle was the fourth tallest building (fifth tallest after the completion of the LaSalle National Bank Building) structure for approximately the same period. Other sources, however, claim this building was the tallest structure for approximately the same period defined by excluding items on top of the main building such as the Board of Trade Building's statue and pyramidal top, the steeple of the Chicago Temple Building, the pyramidal top of the Pittsfield Building, and the mansard roof of the Civic Opera House. The height differences are easily seen in scale depictions.