This has got to take the cake: Time and Relative Dimensions in Legos. Check it out.
When I went to my small liberal arts college, this Escher print was all the rage. Everybody had a copy in the dorm room. Frankly, now that I have kids, maybe this is the way to introduce them to Escher. I also need a Lego Don Quixote to round out my recreation of my dorm room poster collection (the Escher was my roommate’s–I’m the iconoclast).