Oct 17-18, 2026

Important: Information on this site is from the 2025 festival. Check back in September 2026 for the official lineup of this year's sites.

Open House Chicago (OHC), one of the largest architecture and urban exploration festivals in the world, is back for its 16th year of celebrating architecture, culture and community. Use the CTA Rail Map (pdf) to discover neighborhoods across the city. This free public festival offers behind-the-scenes access to 200+ sites, including many not normally open to the public.

Browse the entries from our annual Open House Chicago photo competition in 2025 and 2024.