I just watch a lot of Brian Foerster videos on YouTube e.g. https://youtu.be/AGBOf8mrWjs

Baalbek is a good place to see 1000+ ton milled stones: https://youtu.be/jo-oEk8itlo

Cuzco also seems to have some pre-Inca constructions that can’t be explained: https://youtu.be/66x9VLwZaDQ