4 circles...
There are 4 Circle in the picture
An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality.
Here is one amazing painting by Oleg Shuplyak.
How many people can you see in the picture below?
Depending on how you look at this image, you may see a portrait of a woman, or a silhouette of a man playing a saxophone.
Find The Hidden Cat in This Optical Illusion.
How many circles contains the black dots in the following image?
How many triangles do you see in the following picture?
