My neighbor on Air Bellows Gap Road stacks rocks on a place between his house and the road with a white pine in the background as seen from the road. He used to keep a stack of rocks going at the hairpin turn coming off the Parkway. He walked up there and back every day, often adding a few rocks to the stack. But out in public like that they were always getting knocked down.
There was a time I put a rock on top of every fencepost along my road for quite a ways. It wasn't something I did in one day. From time to time I'd add some more until every post had a rock on it. Invariably somebody would come along and get freaked out and start knocking them off the posts. Once, somebody left a note written on folded paper under one of the rocks. It said, 'Are you a devil-worshiper? Answer this. I want to know.' I must have inadvertently advertised myself a recruiter. I've never been able to figure out that connection between stacked rocks and the devil. I don't imagine the people who think like that even know they do.