Evidence of Aliens Found Underground? | Ancient Aliens

Is it possible that a hidden world exists right beneath our feet? In this episode of Ancient Aliens, we explore the mind-bending "Hollow Earth" theory and the mysterious legends of civilizations living deep underground. From Admiral Richard E. Byrd’s reported flight into a polar opening to the Vatican’s most guarded secrets, we investigate the evidence that suggests we are not alone on this planet—and that some of our "neighbors" might be living inside it.

Courtesy of HISTORY on YouTube. Watch on YouTube ↗

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