Ambiguous images are optical illusions which exploit similarities between two or more distinct images. They are also known as reversal images, puzzle images and perceptual rivalry.
This is definitely one of the most amazing optical illusions of all times! What do you see at first glance - an old woman or a young miss? They are both there!
Similar theme was used on a German postcard from 19th century.
A similar example of ambiguous visual illusions - father and son.
Whole family mind teaser - father with mother and daughter
Sigmund Freud and what really on his mind is.
This one is interesting. Children will probably see a group of playing dolphins. But adults see usually something else. It's called Message of Love from the Dolphins (by Sandro Del-Prete).
