In Or Out Door Illusion
When the first time i saw this illusion picture, i was “grrr” and thought if the door is it in or out? After the few minutes, i just know the top of the door is out and the bottom is in. Do you agree with me? Don’t get mad if you do not know it is in or out because it is an Optical Illusion. It would be impossible to build this door in real life.
Source: In or Out Door Illusion