You might remember these guys from a few months back with the impossible ping pong tricks.
Mind your step is a street illusion in Stockholm created by Erik Johansson. It looks totally awesome and must have taken some serious skills to create.
Probably one of the coolest mind tricks and optical illusions I have ever seen!
Who would of thought Mr Rogers could be so cool?!
Play the classic game of Tetris.
Until you turn them right side up!