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Why Ancient Ruins Are Underground

Have you ever walked through a city and wondered what might be hidden underneath? In this video, we explore the fascinating phenomenon of layered cities, where entire civilizations were built on top of one another. From the buried ruins beneath the Roman Forum and the Basilica of San Clemente to the multi-layered city of Troy and the sunken streets of Seattle, learn how history gets hidden underground and why street levels rise over time.

Courtesy of Primal Space

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