I like the theories about them being ancient power stations or radio devices, using the water channels and gold cap stone to create enough pd to be useful in occult practices. It doesn't have to be aliens that helped make them but I think there's something the really resonates with the idea of aliens coming down and teaching ancient people how to make super complex and beautiful machines to synthesize small amounts of potent narcotics. Like none of the other reasons aliens would come make much sense but a tiktokable prank like that really does.

Imagine how fascinating it would be if we find loads of old alien stuff on Mars with like little model pyramids and pictures of them with the pharaoh. Or if when we meet aliens and have first contact they got us up with galactic tiktok and people are reposting all the old videos of pranks aliens have pulled on earth over the years.

Yeah they were probably just the biggest coolest looking thing that knew how to make so everyone wanted one, yeah they were probably just dragging rocks up sandy inclones and using water filled counter weights.. but we don't know aliens weren't there so I'm going to enjoy being open to that possibility.