Stare at the red dot in the centre of this image for ten seconds. (Waits ten seconds) If the illusion worked you should have seen the monochrome cityscape be tinged.
Here’s a neat trick (Called an Afterimage Effect): Stare at the X for long enough, and the purple dots will disappear!) [Wikipedia – Afterimage] [Via: Grand Illusions]
This is SO cool. Click the GIF buttom for it to work, watch the top half for 30 seconds, then watch Starry Night come to life. So worth it!
Another oddly satisfying gif.
It took me a second to get it.but funny.( it makes a sound like pacman when you put your finger in your ear and scratch)