Cincinnati's supermall included an early version of an indoor theme park...a concept that had been developed -in 1975- for the Windy City's OLD CHICAGO MALL.
Graphic from Hooker Development

A sweeping view of Time Out On The Court. Its mini golf course and thirty-horse carousel are in view. This indoor entertainment extravaganza included a ferris wheel, batting cages and video game arcade among its many features.
Photo from Hooker Development