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Ancient Aliens· Season 16 · Episode 3

The Galactic Keyhole

S16E03·7.4·December 4, 2020·1h·History

The mysterious symbol of the keyhole exists in mystic texts, sacred architecture and ancient artwork found all over the planet. Could this cryptic shape represent a profound connection to the cosmos? And is it a clue that was left behind by extraterrestrials who visited Earth thousands of years ago?

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#8In Season 16of 10 rated episodes

#144All-timeof 289 rated episodes

−0.3vs season avgSeason 16 averages 7.7

2020First airedDecember 4, 2020

Guest stars

Marty Lagina

Marty Laginaas Richard Dolan

Praveen Mohanas Praveen Mohan

Lynn Picknett

Lynn Picknettas Lynn Picknett

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