These unique things have taken year upon years before discovered. You have to wonder at all the unique things that we have yet to find. It boggles the mind doesn’t it?
Naturally as with anything, everyone has their own ideas, thoughts and hypothesis’s as to what it is, how it got there and if it is Man-made, Nature Made or Extraterrestrial Made. What we do know is they are here, we have never seen things like them and, we love Unique Stuff!