13th Floor Haunted House Denver
3400 E 52nd Ave, Denver, CO
Run by Thirteenth Floor Entertainment Group
Verified 23 Sep 2026
1 haunt, 1 theme park haunt and 1 ghost tour open for the 2026 season, each checked against the operator’s own site.
3400 E 52nd Ave, Denver, CO
Run by Thirteenth Floor Entertainment Group
Verified 23 Sep 2026
Halloween scare events run by theme parks, on select nights rather than nightly. Mazes and scare zones are usually an upcharge on park admission, and most carry an age advisory, so check the park’s own calendar before you travel.
Theme park Halloween event
2000 Elitch Circle, Denver, CO
Run by Six Flags
Verified 23 Sep 2026
Guided walks rather than built attractions. The address is the meeting point, and most run on a booked departure time rather than opening hours, so check before you travel.
Guided ghost tour
Meets at 333 E Wonderview Ave, Estes Park, CO
Verified 23 Sep 2026
Looking for the folklore instead? Read the ghost stories of Colorado .
A listing here is a record that the attraction exists and was operating when we checked — not a recommendation. Always confirm dates, prices and age limits with the operator before you travel. Location data © OpenStreetMap contributors.