Buck
You're an armchair theorist. If you'd put aside your snide remarks and start looking at some of the scientific documented evidence of SOME of these formations, you'd understand we haven't scratched the surface of what these are all about yet. Yes, some of them are man made, but not all.
You may poke fun of me as being delusional, but you wouldn't get very far saying the same thing to an division of the US Airforce investigating them or the groups in England who have been studying them....M15, British Ministry of Defense or their Dept of Agriculture. YOU are the one who looks foolish here, not me.