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Some of the wildest underground cities and hidden places in North America, where people used to and still live in. Many were discovered recently and are hidden from the public. #america #underground #undergroundcity PART 2: https://youtu.be/1kKsItnGYSA VIDEO CHAPTERS 00:00 Intro 00:11 Raven rock 01:08 Underground Atlanta 01:46 New York City ...
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