13th Floor Haunted House Denver is located at 3400 E 52nd Ave, Denver. This haunted attraction offers a range of immersive experiences, including All Hallows Eve, Nautical Nightmare, Crimson Night, and Macabre. Guests can also enjoy the Halfway to Halloween event, Primal Fear, and Sensory Overload, making for an unforgettable adventure in a terrifying setting. The venue is set to reopen in 2026, so be sure to check the official site for updates on hours and admission details.