Photo: Courtesy Downtown Denver (multiple sites)
Doors Open Denver: Destination Downtown
- When
- Sep 24 - Sep 27
- Where
- Downtown Denver (multiple sites), Denver
- Price
- Free
Once a year, buildings that are normally closed to the public open their doors, and it costs nothing. Doors Open Denver, run by the Denver Architecture Foundation, returns September 24 through 27 with a Destination Downtown theme built around the state's 150th anniversary.
The program spans historic landmarks and brand-new construction, with self-guided visits plus guided tours and special programming. This edition leans into downtown's current changes: the 16th Street corridor rebuild and the reinvention of older landmarks.
While you're at it
People + Produce Farmers Market: Thornton
Jun 11 - Sep 24 · Carpenter Park
Open sites are free to explore. Some guided tours and special experiences carry a ticket or fill up, so the free self-guided visits are the reliable core of the weekend.
More like this: Denver arts, or everything happening in September 2026.
More Denver worth knowing about.
Weekly events, no noise.
Keep the night going
Jun 11 - Sep 24 · Carpenter Park
People + Produce Farmers Market: Thornton
Thursday evenings at Carpenter Park: Colorado farms, local makers, prepared food, and live music. We make local happen.
Jun 12 - Jan 3 · Denver Museum of Nature & Science
Changing Landscapes: Inside Venice, Mesa Verde and Rapa Nui at the Denver Museum of Nature & Science
Changing Landscapes, an immersive exhibition on climate change at three World Heritage sites, runs at the Denver Museum of Nature & Science from June 12, 2026, through January 3, 2027.
Jun 14 - Sep 27 · Belleview Station
People + Produce Farmers Market: Belleview Station
Sunday market at Belleview Station: Colorado farms, local makers, and a reason to be outside in the DTC every weekend.