Optical Wonderful
Ambiguous & Multistable Images
Images that support two or more valid interpretations at once, where the brain settles on one reading at a time and periodically flips between them.
Ambiguous
Duck-Rabbit Illusion
A single sketch of two bumps and a line reads as either a duck's bill facing left or a rabbit's ears facing right, and most viewers can't hold both readings at once.
Ambiguous
My Wife and My Mother-in-Law (Old/Young Woman Illusion)
A single portrait sketch reads either as a young woman looking away or an elderly woman in profile, with the same curved line serving as a jawline in one reading and a nose in the other.
AmbiguousNecker Cube
A simple wireframe cube with no shading or perspective cues, which your brain reads as three-dimensional in two different - and equally valid - ways.
AmbiguousRubin's Vase (Face/Vase Illusion)
A single black-and-white silhouette that reads either as a vase or as two faces in profile, depending entirely on which region your brain currently treats as the object.