50/50 on what to think. The pyramids being a map of the stars is intriguing and shows how ancient man did some amazing things. But it could have also have been just a tomb, but why was it so plain and looked liked it wasn't used?
For reference I watched this video on it last night. The end of the video does get a bit ancient aliens-y but thankfully doesn't go too far. Great channel btw.
Wild Card Answer: They were indeed massive grain silos :ben-carson:
It was mostly polished white limestone actually, apparently marble was a mistranslation that stuck around for ages. The limestone stuck around too, shit's heavy, a lot of it got recycled into decorations for palaces and later mosques in Cairo. Few of them are still around.
From what I understand that's pretty common throughout history. Stone is hard to quarry & masons are expensive. After a disaster or pillaging the old temple walls & foundations are usually the first to go.
Yup, if you know what to look for in any old city in Europe, pretty much every pre WWI building has elements of stripped older structures. Really common throughout countinously occupied spaces.