Were you aware of other things that were not visual, like how the stones were cut?
That reminds me of a dream I had some time ago.
In the first part of the dream I felt, or was aware of the fact that I was in the wrong time, I knew that I didn`t belong to the time, and was confused and distressed about getting back to the "right" time.
I was wondering what the hell am I doing here, am I a slave!
Everywhere were huge blocks of stone of different colors, and men as well as women were touching them, nodding heads and looking at them like they knew exactly what to do.
Someone yelled, who will be a carver, and someone else shooed me away saying go, go to this class. The "class" was outside and everyone was sitting on the ground.
The teacher was saying, you do not have to retain "any" of this, if you don`t like being a carver you may learn something else, as you know. And he began to put everyone into a hypnotic trance!
I jumped awake right at that point, but remember thinking.. wow, no wonder nobody remembers how the pyramids were built, everyone was hypnotized to do a job perfectly, but when they were awakened, would have no recollection of how they did it!
Makes ya wonder though, Tower of Babel type technologies at work..or just a weird dream?