The iconic image of MC Escher's Reptiles lithograph from 1943 has become part of a global cultural legacy. This is particularly true in the technology world where it not only explores tessellations in Mathematics, but also dabbles in a playful absurdity.
"Relativity", 1953 (lithograph) by M.C. Escher This is perhaps Escher's best-known print on the theme of relativity. It also is a fine example of Escher's focus on unusual, and often conflicting, points of view.