18. Labor Force
Up until now, they only thing that everyone seems to agree with, is that in the building of the pyramids of Egypt, a significant amount of labor force, from slaves, had been used. There was no other way to move these enormous stones and we can be sure that Pharaohs weren’t going to help on this. Just to put this into perspective, the stones that make up the core of the Great Pyramid of Giza, weigh 1.5 tons…each!