Knowledge

A bit of knowledge on optical illusions. Or scroll down to see what you came for.

The history of optical illusions in art

Live Wallpaper

Source/credit: DIY Maxwell

Just a door in the middle of a beautiful scene, makes the background look like a giant wall with a live wallpaper. As you see in the image below, this was not the intention. This door is the entrance to an underwater observatory at Lake Zug in Switzerland.