![Ancient Aliens: The Sunken City (S11, E9) | History Ancient Aliens: The Sunken City (S11, E9) | History](https://i.ytimg.com/vi/btug5bcVVpc/maxresdefault.jpg)
The ruins of a city found at the bottom of Fuxian Lake in China raise big questions about the country's history with extra-terrestrials in this collection of scenes from "The Hidden Empire." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...
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