Photograph by Steven Dahlman

Occupying floors 3-10 of the 41-story octagonal-shaped building, the boutique hotel for business and leisure travelers offers 100 rooms, ranging from single rooms to two-bedroom suites with kitchenettes.

Club Quarters is managing the new hotel for private investors. With hotels of its own in London, New York, Chicago, and five other U.S. cities, Club Quarters hotels are generally private, meaning a guest must belong to an organization that is a member of the hotel.

(Left) 75 East Wacker, as seen from Marina City in 2007. Photograph by Steven Dahlman.