You take the high road…

You take the high road…

This looks like two photos of the same road, taken from different angles. But it’s actually just the same photo twice. Apparently, the visual system treats the image as if it were a single photo of two separate roads. The outlines of the two roads are parallel to one...
Parallel Lines

Parallel Lines

Believe it or not, the horizontal lines are all perfectly parallel. To prove this to yourself, just squint at the image or look at it from the side. Notice that, even after you’re completely convinced that the lines are parallel, the illusion continues to work....
All the Same Color

All the Same Color

This one’s a variation on the Munker Illusion, created by David Novick. The circles in the image are all the same color. The only thing that differs is the color of the lines around them. The illusion is a vivid demonstration of the fact that we don’t directly...