2025 Open Sites

A well-loved portion of the Doors Open Denver festival, Open Sites allow for self-exploration at Denver’s icon sites, from historic buildings to new developments. All open sites are free to explore, and many feature tours and other activations to get to know the space better. This year’s Open Site activities will occur on Friday September 26 and Saturday September 27, and each site’s open dates and hours are noted on their site pages. Explore this year’s sites below, and stay tuned for more sites coming online soon!