I don’t much care who actually built that big old stuff but I really, really want to know what happened to their tools. They had to have had some neat stuff?
Georgio Tsoukalos: For any enormous building project that took years to complete there had to be detailed plans. Where are they?
Also, the Sumerians supposedly guided the new hybrid slave labor race (us) to mine gold for the space aliens. That was the aliens reason for landing. Never explained by the scenes on the Sumerian reliefs and sculptures -——which show them often wearing wrist watches. Probably Timex. And some of the guys carried purses.
Pyramids were built by slaves. IMHO.
The following book is on an archeological discovery of the papyrus draft records of the construction manager of the Giza pyramids. They discuss source of material, transportation of the material, organizing the construction gangs, etc. These 4,600-year-old documents read just like progress reports of a modern construction effort. Here’s the book, link below!
https://www.amazon.com/gp/product/0500052115/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
You don’t need aliens or any supernatural explanations. Such explanations insult us as humans. Our ancestors even the very remote ones were very clever.