Optical illusion is basically how our eyes feel when they’re being deceived. Doesn't matter how concentrated you are on it, it proves how our brains suck sometimes. If you love that kind of thing, you'll love this.
Here are the 12 optical illusions that will blow your mind.
1. These two lines are actually the same length, even though one of them appears to be longer.
2. These yellow lines are the same length too.
3. These are all straight lines.
4. These tiny grains seem to be moving till you start looking at one point.
5. These circles in the center are the same size.
6. These gears aren't actually spinning when you look carefully.
7. If you cross your eyes, you'll see a famous face.
8. How many legs do you see on this elephant?
9. Do you see the gray circles? They're actually white!
10. This one doesn't have any circles.
11. Square A and B are actually the same color.
12. The spirals you see green and blue are actually the same color, too!