Hyatt Regency Chicago

Located at 151 East Wacker Drive, Chicago, this hotel has hosted 2 Windycons, Chicon IV, Chicon 5, and Chicon 2000. It is scheduled to host Chicon 7 in 2012.

The hotel has two towers with 1800 sleeping rooms, several levels of function space, and an exhibition hall, allowing it to accommodate a Worldcon, in both sleeping rooms and function space, in one enclosed environment.