What’s Really Hidden Beneath the Pyramids of Giza? | The UnXplained

By HISTORY

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From the Great Pyramid of Giza to mysterious structures in Sudan, Mexico, the Canary Islands, and beyond, pyramids have appeared across civilizations separated by thousands of miles and centuries of history. Explore theories about their purpose, remarkable discoveries hidden beneath them, and the controversial possibility that ancient cultures shared knowledge across vast distances. Plus, investigate extraordinary claims of a massive pyramid buried beneath Alaska—and pyramid-like formations photographed on Mars. #TheUnxplainedZone New Episodes Fridays 9/8c Watch full episodes of The UnXplained and stay up to date on all of your favorite The HISTORY Channel shows at history.com/schedule. Check out more full episodes of The UnXplained on YouTube here- https://bit.ly/TheUnXplainedS5 and on Google Play! https://bit.ly/TheUnXplainedS5GooglePlay Subscribe for more from The UnXplained and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Watch more The UnXplaine

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