In this image, a drawing of M.C. Escher is hidden in a very special way. You must put a cylindrical mirror on the well, in the reflection you can see the face of Escher. This way of drawing is called an anamophosis. Derived :The well explanation Number of ratings : 33.
Actually this is a deformation. The landscape served as cover for the book "The Mysterious Island" from Jules Verne. If you place a cylindrical mirror at the top of the landscape, you can see the face of Verne himself ! Number of ratings : 13.