At first glance it appears we are looking at a normal wall with a simple small rock embedded between two of the red bricks.

But the image has gone viral as people have spotted a hidden optical illusion of something emerging from the wall.

Identified: The image has gone viral as people have spotted a hidden optical illusion of what appears to be a cigar poking out from the wall.
Identified: The image has gone viral as people have spotted a hidden optical illusion of what appears to be a cigar poking out from the wall.