[Talisker]

Those are sockets on the tops of the pillars - the thing had a roof or top stones like Stonehenge, and it was heavy but could slide off in an earthquake (& flood?) without some sort of ball and socket system. Also, they've confirmed that the whole site was deliberately buried to be preserved. So was the roof/tops taken off when it was buried? If so, where are those stones?

Great post, OP. Fascinating. At least 12,000 B.C., and how did they move such massively heavy stones, let along carve them so precisely?

[PastorBooks]

Let me take a wild guess:

They were building an early version of Fukushima, and they lost containment and buried it all in sand?

LOL

[Big Bronson]

So was[sic] the roof/tops taken off...

It is possible that there were no roofs. Or that they employed wood/organic materials which had rotted and fallen in at the time it was decided to bury the site at some much later date. Maybe the old site was deemed "evil" by later settlers.

[Tammy8]

I don’t know anything about this sort of thing but the oval stone in the middle with the rectangle inside looks like it goes right on top of one of the pillars- reminds me of LEGOS.