Much more on Gizmodo.
Is it really possible to turn flat (sic) MC.Escher drawings into life-like real CAD 3D models? Why not…
Ben Marks, at Collectors Weekly, traces a short history of the optical illusions turned toys.
Would you believe that these are swimmin gpools photographed from high up in the sky?
All at Stephan Zirwes web site.
Erik Johansson is a photographer and a master Photoshop artist.
More on BoredPanda.
The electronic version:
According to Atlas Obscura, the mirror maze on Pier 39 is so trippy an experience that some people would stumble down by just walking through it.