A drawing by Humberto Machado showing two faces, A man and a women. Which one did you see first?

This optical illusion was submitted by Humberto Machado.

This optical illusion was submitted by Sanjay Dhakan.

Painting of a Narcissus using a conic aluminum mirror to construct and deconstruct the main image.

This optical illusion was submitted by Fletcher Smith.

This is moving picture, the hearts appear to move when you look at it

This optical illusion was submitted by Anh Pham .

You can persive this illusion in 2 ways

This optical illusion was submitted by Anh Pham.

A three dimensional model of the Penrose impossible triangle.

The illusion is revealed in this video:

This optical illusion was submitted by Rex Young.

Circles of stars appear to rotate in opposite directions in a static illustration of the optical illusion variety.

This optical illusion was submitted by Mark Grenier.

Montage of various three dimensional real-life illusions.

This optical illusion was submitted by Rex Young.

Here is a Hidden Face illusion from Anh Pham, hope you enjoy. Thanks

This optical illusion was submitted by Anh Pham.

Water is flowing upwards by itself.

This optical illusion was submitted by Vijay Patel.