There was (allegedly) too much fog in Florence, so the plane that I should have gotten on was diverted to Pisa. That meant a 1-hour bus ride westward to the Pisa airport:
Of course, by the time this happened and the flight to Paris finally took off, I had missed my connection back to the states. Thus, I got to spend the night at a totally forgettable airport hotel. Fortunately, the hotel was located in the quaint little village of Roissy-en-France: