Open in a new window >>

Optical Illusions

Café Wall
Click anywhere to change the pattern.


Concentric Circles
Click and drag the sliders to rotate the two 'flowers' and create the illusion of concentric circles in the middle.


Straight Lines
Click anywhere to draw dots in such a way that the flat squares appear to rise.


Rubin Vase
Click to change the focus from the glass to the faces and vice-versa.


Müller-Lyer
Click to change the arrows. Flicking the ends appears to change the length of the lines.


St John Lateran Floor
Roll on the characters to make them stand head down or head up.


Ponzo
Click to see which character is taller.


Impossible Triangle
Roll the mouse around to rotate the impossible triangle.