2025 Open Sites

Friday September 26 & Saturday September 27

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.

Most sites are open 10am-4pm on their respective days, but some have alternate hours. Some sites are also only available on one day. Please visit each site’s page for full details.