MC Escher, who always said that he was as much mathematician as artist, has a new museum dedicated to his work. The Escher Museum, based in the Netherlands, “arranges Escher’s prints and drawings chronologically, with early realistic sketches, linoleum cuts, and some commercial designs on the first floor and most of the masterpieces of perspective and optical illusion that made him famous in the 1950s and 1960s grouped thematically on the second, main floor. The museum also adds a modern touch with a ‘virtual reality’ display on the third floor that turns some of Escher’s best-known works into moving holograms.”