XD but I've never stood upside down when a regular rainbow is present so my answer should really be a no..... Though I have seen a double rainbow a few times before! :D
Naturally occring, no. But then I don't look at the sky much, too bright. Man made, yes. Well, man made thing that looks like one of those. Wasn't actually one.
http://en.wikipedia.org/wiki/...
...the last time I visited Australia.
Man made, yes. Well, man made thing that looks like one of those. Wasn't actually one.
http://en.wikipedia.org/wiki/...