Delaware Building - View this location on map One of the few Loop structures surviving from the massive rebuilding that followed the Fire of 1871, this Italianate-style building is also an early example of the use of a precast concrete facade in Chicago. An 1889 remodeling made it competitive with newer and larger commercial buildings by adding two floors, a dramatic steel-framed interior atrium, and redesigning the first two floors. 36 W. Randolph St., Chicago , IL Historical

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