Some amazing visual illusions - the first and last in particular are strikingly strong.
Spectacular and fascinating visual illusions - winners for 2010
Video shows the Ames Room illusion, and how Temple Grandin solved the riddle of how to construct it (from Temple Grandin - the Movie)
Brief clip in which Ramachandran explains and demonstrates Ames room illusion
Videos and photos of visual illusions - Sugihara
Large Collection of visual illusions, many interactive
Viewing flashed women's faces in peripheral vision distorts them, making some look ugly and grotesque. Video, see "See more" for more information and links.
Red/green/blue stripes - color contrast
Illusions, ambiguous figures, hidden figures, impossible figures, inversions - large collection of visual images
Powerful illusion of motion.
Warp Speed (next on list) is also powerful.
McGurk effect, sensory integration, rubber hand illusion