Guys, you forgot Alsace with cobbled stone streets (Colmar & Strasbourg) and wonderful "maisons à colombages". Then there is Biarritz in the South West and many smaller towns around Paris, from Amiens to Dijon, Reims or Troyes.
Hey.
France all over !
Your biggest challenge is to find a job in interior's design. You're looking at France here. They know quite a bit on that topic and you probably could kick start a career working with them and bringing the knowledge back home.