Optical illusions

Can you believe your eyes?

Stretch your brain with these mind-bending illusions.

Astounding colours	Brightness illusion	Size illusion	Hollow face illusion	Wavy lines
Does it move?	Brain Trickery	Adelson’s illusion	Disappearing dots	Rabbit or duck?
How many legs?	Rotating wheels	Spinning disc	What do you see?	Herman grid
Impossible triangle	Impossible trident	Fraser spiral	Does size matter?	Café wall
An apparition?	Motion after effect	Colour contrast	Stroop effect	Necker cube
Young or old?	Moving lights	Kaniza effect