A straight metal bar appears to pass impossibly through two guitars.

See the video / reveal of the illusion here:

This optical illusion was submitted by Rex Young.

More sort of an eye opener for smokers!
This is a hidden image, and a message to all smokers, the smoke from cigarette creates the holy death, the icon of death.

This optical illusion was submitted by anh pham.

Look at triangle. It is hard to follow its path. Only one string!!

This optical illusion was submitted by anh pham.

Gaze at the red square. You will perceive 5 circles are moving similar to how a bicycle pedal moves as you pedal. Now, look at the 5 moving circles, you will perceive they are moving similar to a clock hand. Need a bit practise.

Explanation: the illusion happens when observer switches from foveal to peripheral viewing. When we switch between 2 visual systems, the moving objects sometimes happen in different ways.

Another super illusion by Anh Pham.

In real life the bigger objects appear to move slower than little objects with same speed when viewed by naked eyes. To vertify the speed of an object by naked eyes we often use a point on ground as a stationary point and a point on that object. With big moving object, it is harder to chose an point than little object. In addition, it is harder to realise the distance (space) that big moving objects make per a specific amount of time (seconds, minutes…).

This illusion was submitted by Anh Pham

This illusion caused by the motion aftereffect. If one looks at a spiral for about seconds or minute and then looks at the stationary squares bellow of the spiral, these squares appear to be rotating opposite slightly. The illusory rotating movement is the motion aftereffect. This particular motion aftereffect is also known as the spiral illusion.

This illusion was submitted by Anh Pham

The blue circles are set to move in clockwise direction. When switching from foveal visual system to peripheral visual system (to the right handside of the rotation) it appears the blue circles are more likely to rotate in counter-clockwise direction.

This illusion was submitted by Anh Pham

In this arrangement of cards, the Jack is actually nearer than the Six.

The secret to the illusion is revealed in the video.

This optical illusion was submitted by Rex Young.

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.