OR this below.
To look at things on a smaller scale and closer to home, look up the Coral Castle in Florida that I mention earlier. There was one 5'-2" 60 yo man quarrying and moving 30 ton blocks by himself. And claiming that he knew the secret of the pyramid builders.
Anyone in the SE that is interested in this stuff should take the drive down and check it out. The site itself is quite small, I was surprised at how small it was when I visited there 20 years ago or so. He originally started building in Florida City, about 10 miles away. Then moved to Homstead and moved the big blocks with him. The hired truck drivers claimed, they would show up, he would send them off for coffee, when they returned, the blocks would be loaded on the flatbed. And he was the only one there.
How did a little old man move huge blocks? Loading and unloading them on flatbeds?
From Wiki:
Coral Castle - Wikipedia
A neighbor lady once said she heard him singing and saw him walking, pushing a coral block that was floating in the air.
Visitors said he had a grid of electrical wires overhead and he did have a giant, home-made hand crank generator (that is still there). I've got some pics I took somewhere, but that was pre-digital, so I'd have to find them and scan them and not going to the hassle because....
But, there are tons of pictures online of the place.
He also built a sun dial unlike any other sun dial out there, shows time, and date and it is supposedly very accurate.
TLDR - Cliff Notes: There is a monolithic site right here in the USA on a much smaller scale, built by a little old man, by himself. Find out how he moved 30 ton blocks of coral by himself and that is probably how the pyramids and other megalithic structures were built.