This optical illusion, designed by Victoria Skye, is based on the Cafe Wall Illusion.  Do the dark blue horizontal bars appear to be parallel or angled? If they look angled to you, have another look or grab something with a straight edge as they are straight and parallel.  The alternating black and white patterns where […]

In this variation of the Cafe Wall illusion, created by Alan Stubbs, the vertical gray lines between the black and white squares appear to be quite wavy.  If you take a straight edge (like a sheet of paper or a ruler), however, and hold it up to the lines, you will find that they are […]

Are the horizontal lines on the following figure parallel or do they seem to be skewed? They are indeed parallel but appear to run at angles because of the staggered black and white boxes.  This illusion is commonly known as the cafe wall illusion.