Casa Magnetica is a classic walk-through "crazy house" featuring several optical illusions. Originally guides would take guests through the "crooked house of Don Juan," an eclectic architect that built his floors tilted up to 34 degrees. Perception itself was challenged in this scripted attraction as water seemed to flow uphill, balls rolled up sloped tables, and a broom stood upright on a crooked floor.

Casa Magnetic is one of the oldest attractions in the park, opening with the park for its inaugural season in 1962. It has sporadically operated throughout the years, often being on multi-year hiatuses when the park would cut spending on the attraction's upkeep or entertainment staffing to run it. It was most recently overhauled in 2021 and re-themed with new lore. It reopened for a time in summer 2023.

During Fright Fest 2025, Casa Magnetica reopened as a self-guided attraction, which it continues operating as.