The Bank of America Chicago Marathon runs on October 11 — one of the six World Marathon Majors, with 50,000 runners crossing 29 neighborhoods and two million spectators.
The Chicago International Film Festival, the oldest competitive film festival in the US, screens world premieres over two weeks in October.
Fall foliage colors Lincoln Park and the river's North Branch, and Open House Chicago throws open hundreds of normally closed buildings for free.
Tell Wandr when you're going and who's with you. In 30 seconds you have an hour-by-hour itinerary with photos, bookings and maps — free.
Plan for octubre