I love these old Dolmen and Menhirs. I use those across England, France & Spain as if they assist telepathic communication in ritual meditations in my book series of the Dream Team adventures, specifically in "New Blood, New Targets."
My characters experiment in ancient Taoist rituals to call on birds and bees to transfer thoughts along the lines of stones.
www.authorbyrongeorge.com
Thankyou for showing me this route, hopefully one day I'll get to feel their magic first hand.