It's been snowing for a few days here in Columbus, makes me want to see some snow art. Then I found this snow sculpture on the internet - It was an entry piece by a Minnesota team at 2005 Breckenridge International Snow Sculpture competition. The sculpture is an artistic version of a Möbius strip.
What is intriguing about this mathematical form is that: A Möbius strip has only ONE side and ONE edge. Following the path of a Möbius strip, we simply reach the opposite side without leaving the same surface - a flip without flipping, a twist without twisting.