Ancient Aliens - Season 20 Episode 20
Puma Punku in Bolivia features stone blocks, each carved with precision; the blocks lie scattered across the landscape, confusing archaeologists as to what the ancient site might have been.
- Zhanri: Documentary, Mystery, Sci-Fi & Fantasy
- Studio: History
- Fjalen: paranormal investigation, ancient aliens theory, ufo conspiracy, megalith, petroglyph
- Cast: Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken
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