This optical illusion was first created in 1861. Look at the two thick vertical lines.

Do they look straight or curved to you?

Hold a ruler up to the screen and you will see that they are indeed straight.

Do you see the native american wearing a headdress, or the inuit wearing a fluffy coat and entering an igloo?

Can you see both the young woman and the old woman in this classic optical illusion?

If you need some help, the eye of the old woman is the ear of the young woman. The old woman’s mouth is the young woman’s necklace.

Does this look like a spiral?

It’s actually a bunch of concentric circles. Use your mouse to trace one circle and you will see that you come back to where you started instead of spiraling into the center.

Look at the red dot in the middle and move your head towards and away from the screen.

See how the outer rings appear to rotate?

In this illusion, black spots quickly appear and disappear at the intersections