Escher's Lair

This was shot in the "Französischer Dom" in an exhibition called "Domoskopia", which is basically about optical deception. Not much to see there but nonetheless interesting and original. As a big fan of M. C. Escher's multidimensional graphics I was really fascinated by some effects, so call this photo a tribute.

_{some PS work: adjusting of levels and curves, minor color tweaking, crop, resize, sharpen, frame}