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The Chicago Architecture Foundation’s openhousechicago (OHC) is an annual weekend festival of behind-the-scenes access to over 100 sites city-wide. OHC 2011 is a free public event, Oct 15 & 16. Plan your own itinerary. No tickets. No reservations. Rain or Shine. Be prepared. Go.

• Get more details on the OHC event >
• Register for up-to-date OHC info and a chance to win great prizes >
• Find out more about the Chicago Architecture Foundation >