Ancient civilizations

[Gawdzilla Sama]

The only problem with the Giza Pyramids is that no one has figured out what kind of ramp they used.  A single ramp would have used more material than the pyramid itself and a ramp which wraps around the edges would have obscured the corners making it impossible for the architects to get accurate measurements.
I have a suspicion but no one is going to take a pyramid apart to test it out!

I thought the Egyptians dismantled the outer layer of the pyramids themselves.
Not like we 'salvaged' monoliths and circles ourselves...

Technically. They were Muslim at that point, mostly, and used the polished limestone for mosques and public buildings.