You've caught the eternal mystery of this place. The stone ring wouldn't be there at all if this weren't a special place to begin with, and now the stones themselves make this hilltop special to our modern eyes. I wonder if it is near the crossing of ley lines.
The artist's mission in life is not to selfishly accumulate a lot of money by cheap trickery, but to use, in the finest manner of which he is capable, the rare gifts God has entrusted to him. ~John Garth
Those standing stones looks like being something related to the megalithic style.
Congrats.
Saved & Faved,
Ed.