Escher's "Relativity" in LEGO.

I am simultaneously impressed and horrified. Someone has recreated Escher's "Relativity" in LEGO blocks. Actually, they've recreated five of Escher's works so far, including "Ascending and Descending". To get the perspective effects, they primarily use precise camera placement, but sometimes resort to in-camera distortion and printing tricks.

Kind of a cool idea, impressive planning and implementation, but I still don't understand why. Perhaps that is the Nature of Art.