It becomes like this if you make the QR code three-dimensional like Escher's world and make it into a cube

It is a mathematician / logicologist born in Brno of the Austrian-Hungarian double empire famous for the study on integrity theorem, incompleteness theorem, and continuum hypothesisKurt Gedel, German composer and also called "father of music"Johann Sebastian Bach, And known for its unique printmakingMauritz EscherIt is "Godel Escher Bach QR Code shadow cube" (Godel · Escher · Bach · QR Code Shadow Cube) made by respecting these three people.

Godel Escher Bach QR Code shadow cube by SashimiTabernacleChoir - Thingiverse
http://www.thingiverse.com/thing:15232

This is a design drawing



Actually outputted with a 3D printerThis.


Like thisIt will be


It seems like a rather intricate labyrinth, it is a masterpiece