During his aventures, with the Doctor John H. Watson or not, Sherlock Holmes travelled all around the world. Are you able to find all the countries he visited? Good luck!
Very fun quiz! Like Elboy and Iluvbread said, visuals are absolutely amazing. One correction I have though is Sherlock didn't visit most of these places with Watson--he mostly traveled by himself between the time he was "killed" at the Reichenbach Falls and the time he came back. So maybe you can change the beginning description to clarify that he visited a lot of these places by himself?
Avec plaisir ! Je préfère la version française à titre personnel, mais la version anglaise remplit ici fort bien son rôle d'accompagnement, il est vrai.
True, this can be a bit inaccurate. I changed a small part of the instructions.
Sardinia, Sicily and Corsica don't light up.