There's something even BETTER if it's France you are talking about.

www.pagesjaunes.fr

This gives you not only maps, but actual photos of street addresses of an ever-expanding list of French cities... it used to be just Paris and Lyon, I believe...

Leave it to the French to come up with yet another very useful twist on something so basic like maps - makes sense - more important to them than where it is - which is the Anglo question - is what does it look like, so they WOULD be the ones to be first at doing this...