[mutley]

The horse outline is relatively modern. Stonehenge is far older than ANYTHING in Egypt.

Okay, assuming you are right. Where are the structures that bridge the gap between rough large stones balanced on one another, and the laser like precision of the grand gallery? My guess is that you will parry.

[RightWhale]

What I am wondering is why we don’t hear much about the giant cog stones in the grand gallery.

[elli1]

Where are the structures that bridge the gap between rough large stones balanced on one another, and the laser like precision of the grand gallery?

Probably recycled, as in the case with a lot of the material from much more recent Imperial Roman structures. The longer a pile a rubble lays around, the longer someone has to think of a use for it.