Beneath our cities, the past might be closer than we think. In this episode, host Mike Porter explores the Mudflood Theory, the idea that a global catastrophe within the last few centuries may have buried entire levels of civilization under mud and soil. From Seattle’s underground streets and Chicago’s raised city blocks to the sinking cathedrals of Mexico City and the palaces of St. Petersburg, we examine the physical evidence, the historical record, and the controversial belief that some of these structures may predate colonization and trace back to a forgotten culture known as Tartaria.

Is it geology, engineering, or something history can’t explain? Join us as we dig into one of the most debated mysteries of our modern world, a story written not in books, but in the buried architecture beneath our feet.

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