Open House Chicago 2025 will turn Chicago into an open canvas of design, history and hidden spaces on Oct. 18-19. The Chicago Architecture Center presents this free public festival, offering behind‑the‑scenes access to more than 200 buildings and sites of architectural, historical,and cultural interest in over 20 neighborhoods.

For the first time, participants can log in to the OHC platform to save their favorite sites and itineraries across devices, a capability meant to streamline planning and navigation. Four neighborhood headquarters will serve as orientation hubs across the city, where visitors can pick up maps, get assistance, and adjust their routes.

At the heart of the festival is the Photo Competition 2025 , returning after debuting in 2024. Photographers of all experi

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