The first level of Super Mario Bros. wrapped around a mobius strip!
Its creator, Joaquin Baldwin writes:
This is a 3d-printed mobius strip of Level 1 or Super Mario Bros. The whole level is wrapped around itself in a single surface, and poor Mario begins and ends at the same spot every time.
All the elements from the level are there: every mushroom, turtle, cloud and star. They are all carved out of the surface at different heights, which looks fantastic when you have a light coming from the side, and each block casts a shadow.