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The Congress Plaza Hotel, the 1893 former Auditorium Annex on Michigan Avenue

Congress Plaza Hotel

Built for the 1893 World's Fair — a history-soaked (and
famously haunted) Michigan Avenue landmark facing Grant Park.

Auditorium Annex1893Clinton J. Warren 520 S. Michigan Avenue, facing Grant Park

Congress Plaza Hotel. Auditorium Annex, 1893, Clinton J. Warren, 520 S. Michigan Avenue. Photo courtesy of Congress Plaza Hotel.

Why this building matters

The Congress opened in 1893 as the Auditorium Annex, an overflow hotel for Louis Sullivan and Dankmar Adler’s Auditorium Building across the street, built for the crowds of the World’s Columbian Exposition. Designed by Clinton J. Warren and expanded in the early 1900s by Holabird & Roche, it grew into one of the city’s great convention hotels, with elegant historic ballrooms. It anchors the south end of the Historic Michigan Boulevard District.

What guests are saying

What guests love

  • A genuine World’s Fair–era landmark with grand, atmospheric public rooms.
  • A budget-friendly rate for a Michigan Avenue address facing Grant Park.
  • On Michigan Avenue overlooking Buckingham Fountain and Grant Park, a 7-minute walk to the Art Institute.

What to keep in mind

  • A faded grande dame — rooms are dated and vary widely; read recent reviews
  • A vast old hotel with uneven modernization

Best for History-minded, budget-conscious travelers who value a landmark Michigan Avenue address over modern polish.

Summary of guest reviews. Sources: The Congress Plaza Hotel, Commission on Chicago Landmarks, Preservation Chicago. Photography courtesy of Congress Plaza Hotel, used with permission. Details may change over time.