Are they sinkholes or cave-ins? Regardless, these holes have St. Louis' attention

Several St. Louis streets have given way to gaping holes in the past week, exposing a side of our city's built environment most of us have never seen. But are these sinkholes, or cave-ins? Historian Chris Naffziger goes beneath the surface of these definitions to share some of the stories hiding beneath our feet.

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This episode was published on April 24, 2025.

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