Best natural attractions in Iowa

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Natural attractions in Iowa

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    The Grotto is frequently considered the “Eighth Wonder of the World” and The Iowan magazine has described the Grotto as a “Miracle in Stone.”
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    Maquoketa Caves State Park is a state park of Iowa, US, located in Jackson County. It stands northwest of the city of Maquoketa. In 1991 on t
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    Crystal Lake Cave , Dubuque
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