Inside Out Window Illusion
Take a good look at this window. Are the shudders turned inward or outward? From the top they look out but from the bottom they appear in and the entire window seems to face left or right depending on how you look at it.
Baby in Picture Illusion
Can you find the hidden baby in this picture? The baby should pop-out at you right away but if you're stuck - here's a hint: Look at the picture as a whole.
The Impossible Picture
This optical illusion image makes my brain hurt. What's throwing me off is the grid underneath the structure which makes it appear as though the upright posts have horizontal space between them - too trippy.
The Jesus Optical Illusion
The Jesus illusion really does work. Stare at the four dots that are lined up on the screen for a while. Afterward, stare at a blank wall - a white wall preferably. Blink a couple times if you have to and then you'll see what appears to be a clear face of a man with a beard.