Le Passe-Muraille is a sculpture in Montmartre based on a character, Monsieur Dutilleul, in Marcel Ayme's 1941 short story, about a man who can walk through walls. Having discovered his special talent, he uses it to secretly visit his married lover. The sculpture, made in bronze, depicts the moment when Dutilleul suddenly loses his power, as he is half way through a wall, attempting to escape from his lover's husband!
The sculpture is located at the junction of Rue Norvins, Rue Girardon, Rue Orchampt and Avenue Junot, close to where the French author lived. Ayme's story has inspired at least 5 cinematic adaptations, and has also been the basis for a 1997 stage musical.
For the perfect photo opportunity, why not grab Monsieur Dutilleul's hand and try to pull him through the wall (his shiny hand is evidence of many unsuccessful attempts!).