Since the 1800s, the City of Rockwall, Texas has had a mystery it's been trying to solve. Allegedly, the town was built on a rock wall that was constructed by some ancient civilization or even giants, in Season 2, Episode 3, "Great Wall of Texas". #AmericaUnearthed
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In "America Unearthed," host Scott Wolter uses hard science and intuitive theories to explain the most mysterious artifacts and sites in America.

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