Surprising perceptual illusions

Oh, come on!

 

Maurits Cornelis Escher and Giuseppe Arcimboldo. I think they are the best


Maurits Cornelis Escher
https://mcescher.com/


Giuseppe Arcimboldo
https://www.giuseppe-arcimboldo.org/

 

Giuseppe's great, some of his pieces can be turned upside down to reveal yet another picture.

 

It is impressive that it was during the 16th century.