NEET
06/13/2023 (Tue) 00:50
No.713861
del
>>713859The ones in Yucatan and Peru were poured, they're made out of something similar to roman concrete (natural lime
i think that expands when water gets in the cracks).
Some bloke built some stones near Aswan out of lime and basalt iirc.
Or it's acoustic levitation but I'm not convinced.