We arrived by train in Florence and navigated the throngs of tourists toward our AirBnb, a unit requiring climbing several flights of wooden stairs with steep rises. Its exterior doorway opened onto a sidewalk maybe 6” wide before a curbed one-way street where Italian men liked to exceed 40 mph, meaning I greeted each morning in Florence with a “Wait at the bottom of the stairs!” any time a child wanted to lead the way out of the apartment. We started our time in Florence with the Uffizi…