Imagine we wanted to make an exact copy of the pyramids in Egypt, the great pyramid specifically.
Never mind building them without machines. Do you think mankind, not just the current residents of Egypt, but do you think in this world there exists the technical know how and political will to even be able to do it?
The form energy involved in pyramids is fascinating. You can make a scale model of a pyramid to the same dimensions as the great pyramid of Giza (oriented geomagnetic North/South just like the real one) and conduct experiments with it and it actually works to hinder bacteria.
I put a pint of milk in an open jar under a wire frame pyramid and it never rotted. Over the next 6 weeks it basically turned into cultured sour cream.
If you're interested, look into the book Pyramid Power by Patrick Flanagan.
A bit of basic information concerning pyramid form energy:
https://www.bibliotecapleyades.net/piramides/esp_piramide_18.htm