This is a seriously cool mobius strip of the first level of the original Super Mario Brothers for the NES. The entire level is wrapped around upon itself in one continuous loop.
Every single thing from the entire level is here. Every enemy that you killed a million times. Every hole that you fell in as a kid. Its all there in a fairly great amount of detail.
Its a strong sandstone creation, created from one single plane, so it wont break easily.
I cannot speak for every one, but when I played, ever single time I got to the end I tried my hardest to jump over the flagpole. I can only imagine how annoyed I would have been if I succeeded only to find that I was right back at the start of the level.