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RE: Travel Pro Adventure #8: Kayaking, Caving, and Discovering the "Ancient Alien" Cave Paintings in Krabi Thailand! Part One (24 photos)
That's what they say they are. I don't know how they know. Carbon Dating or something. Thanks for coming along! -Dan
Yeah, probably something like that! And also, I know from the ancient Greece, sometimes you can see it on the way they portrait stuff, the material used and the design of it :-)