Do you see a duck, or a rabbit?

Do you see a face? Look carefully!

Do you see a woman holding a glass? Or something else?

Do you see just a horse?

Don Quixote, or a windmill?

Don't look for an illusion. It is here because of its beauty.

Don't you think it is getting domelike? (The image is Copyright A. Kitaoka)

Holding one's self.

Impossible blocks.

Impossible cube

Impossible figure.

Impossible picture.

Infinite chaos.

Intertwined tools.

Is it a cat, or are there two people sitting at the table?

Is it a cube inside another one? Or is it a cube with a missing part?

Is it a donkey you see, or a seal?

Is it a hand or an elephant?

Is the circle inside moving?

Is this a balloon? (The image is Copyright A. Kitaoka)