At 48 stories, the headquarters of this hospitality group is no giant, but it more than makes its mark on South Wacker Drive with a bold elliptical shape, a glass-faced street-level lobby rising 36 feet, and a pedestrian-friendly plaza. One of the city's newer towers, it displays a noticeable tweaking of the unrelieved curtain wall that makes many city streets forbidding canyons. Designed by Pei Cobb Freed & Partners, the building was completed in 2004.
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