13th Floor Haunted House
3400 E 52nd Ave, Denver. Sept 11–Nov 14. From $19.99. Denver's flagship haunt and one of the nation's best — three attractions in 2026 (Legend of the 13th Floor, Twilight of the Damned, The Blood Shed), plus an expanded midway with escape games, axe throwing, and themed VIP cabanas. New this year: a Trick 'r Treat augmented-reality experience. Longest season in the metro.








