This is a pretty extraordinary claim: > The oldest construction, Unit 4, likely originated as a natural lava hill before being sculpted and then architecturall

This is a pretty extraordinary claim: > The oldest construction, Unit 4, likely originated as a natural lava hill before being sculpted and then architecturally enveloped during the last glacial period between 25 000 and 14 000 BCE. Evidence for ‘sculpted and architecturally enveloped’ seems spotty though, and it’s also an interesting choice of words that carefully avoids saying anything was ‘constructed’