Ballroom at Hotel LaSalle in Chicago (Ill.), 1933. The Hangar, the attic ballroom in Hotel LaSalle, located at LaSalle and Madison streets, decorated (and possibly created) for the Century of Progress International Exposition of 1933-34. The view shows a room with exposed ceiling trusses, decorated with flags. Several chandeliers hang from the ceiling. A temporary-looking bandstand is in the room. The rear wall contains a large painting of a blimp and airplane flying over the Century of Progress fair site.