Optical illusions, all of these are non moving optical illusions so if you think they move, its just your mind playing tricks on you. No zombie monster things. Thanks for watching my video. Honours for This Video: #20 - Most Discussed (All Time) - Education #14 - Most Viewed (All Time) - Education #17 - Top Favourites (All Time) - Education #28 - Top Rated (All Time) - Education "Optical": Anything dealing with sight or vision; anything having to do with light. "Illusion":An illusion is a distortion of a sensory perception, revealing how the brain normally organizes and interprets sensory stimulation. While illusions distort reality, they are generally shared by most people.