What do these Bizarre Ancient Megaliths all have in Common?

[@AncientMysteriesAndInnovations]

Do you guys believe that there was a pre-ice age civilization that was responsible for most of these lost construction techniques?

[@seftonwalker3978]

yes, for sure. there were many civilizations after younger dryas that inherited the structures and some of the knowledge.

[@AncientMysteriesAndInnovations]

@@seftonwalker3978 100%

[@Pjayque]

Great pictures

[@stevefaure415]

And the answer is--they're all made of stone!

[@ShadowGaming-ft4fh]

It's just stone