Postman Cheval's ideal palace - Back of the palace

Several niches contain stone reproductions of foreign monuments (White House, Algiers mosque...). I reckon that if the postman did not travel he had for sure seen a lot of postcards.
Several niches contain stone reproductions of foreign monuments (White House, Algiers mosque...). I reckon that if the postman did not travel he had for sure seen a lot of postcards.