Just another brick in the wall? Think again.
This image, which has just reached viral status and forced people to momentarily revaluate the way their brains work, is one of the best optical illusions we’ve come across in some time.
The challenge, if you choose to accept it, is to look at the photograph and name the object prized between some bricks.
Got it? Feeling confident? Well if your answer is ‘a smaller stone’, you’re close but no cigar…
Because, yes, it actually is a cigar, enfolded between the big rocks to give the appearance of something else entirely.
Have a look again and then feel free to give your cerebral cortex a right telling off.