Roadside attraction
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Spook Hill of Florida
Gravity-hill attraction where cars appear to roll uphill, explained scientifically as an optical illusion but wrapped in ghostly legend.
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Mystery Hole of West Virginia
Classic West Virginia roadside attraction built around impossible-seeming gravity and perspective effects; a local mystery landmark rather than a haunting.
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Blue Hole of Castalia, Ohio
Brilliant blue spring/pool famous for its eerie clarity and local ‘bottomless’ legends.