Technically speaking, there are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and brain of excessive stimulation of a specific type, and cognitive illusions, the result of unconscious inferences. Continue reading to see five mind-twisting illusions that have been captured on video.

5. Shade Illusion

4. Pool Illusion

3. Moving Square Illusion

2. Crazy Chair Illusion

1. Impossible Balls Illusion