Somewhere in the Sachsenhausen district of Frankfurt, Germany an…

Somewhere in the Sachsenhausen district of Frankfurt, Germany an unknown street artist used a deceptively simple set of stencils to turn a street grate into an awesome optical illusion. What was a grate on a utility hatch is now a window through which light shines, casting shadows on the floor of a tiny room.

If you know who created this clever work of literal street art, please let us know.

[via WHUDAT]