I was talking to a colleague about Italy and he described a sense of unreality visiting there, how every street looks like a movie set and every vista like a postcard, and how it takes a honking car or beeping cell phone to break the spell and re-locate your head in the present time. I don’t know if I feel this way all the time, but here’s a view in Florence, looking South across the Arno at dusk, more or less the same time and place as these pictures.