Cityspire

The Chicago architect Helmut Jahn designed this mid-block 72-story skyscraper, completed in 1989. Described by one critic as "high-tech historicist," the granite and glass elevations are crowned by a ribbed dome that was once notorious for whistling in high winds. Built with air rights transferred from City Center, a Moorish-style landmark on 55th Street, it contains an Art Deco-ish pedestrian arcade and rehearsal space for non-profit groups -- a penalty for exceeding the original height approved by City Planning Commission.