Several weeks ago, I decided to live a first and unusual experiment: make a mini European tour by bus. Actually, the craziest thing was to do it with a group of Russians while I do not speak a word of the language. Yes, either I'm a little crazy or a real adventurer. But, the truth was my Russian friend wanted to spend her last vacation in Europe and it was a chance to enjoy it together. I will not here paint a postcard of the various places visited, but I will point...