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Opening September 19 - Reopening for 2026. Hours, dates, and admission may vary — check official site for current details. Last verified: 8/31/2026 Hillside House of Hell is the newest & largest haunted house in Iowa! Originally built in 1964, this abandoned asylum has been transformed into a 50,000sqft horror meca! Featuring the Sacrifice, Devil's Chapel, Klown Kraze 3d, and Motel Massacre
- Scary
