LOL Stonehenge was not built by human beings of any color.

The stones are too heavy and came from over 100 miles away in Wales. Before the invention of the wheel.

We can't even figure out how the stones were moved, let alone erected, much less being able to replicate it today. Stone-age people certainly didn't do this feat of engineering; the suggestion is laughable.

All over the planet are ancient formations of stones too heavy for even modern people to move. Many are cut with lines so straight and precise, no mortar is even needed, and they fit together as perfectly as a jigsaw puzzle. It appears that a number of other societies (not of earth) have figured out anti-gravity and how to harness it.