 Among the grafitti seen on the walls and doors of the bohemians  garret are: "Non, je ne regrette rien" (1956 song made popular by  Edith Piaf), "Bonjour Tristesse" (1954 novel by Francoise Sagan),  and "Ceci nest pas une pipe" (from Rene Magrittes 1929 painting  "The Treachery of Images").