I have always been interested in Stonehenge but never learned much about it.
You can get any opinion you want on how they were built and or moved but we still don`t know.
There’s a documentary around here somewhere, the large trilithons were quite carefully made, and on one the work crew started to carve the wrong side, were stopped, and made to do the correct side. Since they couldn’t very well fix it, it got assembled that way, and the error is still visible. :’)