Thanks yet again, Wikipedia.
Monsieur Cat - the grinning yellow cat I mentioned a couple posts ago - has gotten into my mind and I felt I MUST try to seek more about him.
Turns out he has his very own website, which he shares with some Space Invaders also big in graffiti for a while. It's monsieurchat.free.fr, in French - but if you can play with it a bit like you do Yahoo Maps or Google Maps, you'll find a way to see all the M. Chats in the world. Tip: You can see a list by nation and city if you choose "Ville: Toutes," "Type: Monsieur Chat," and then hit the "Afficher" button.