Today I had to run some errands--buying train tickets to Venice, picking up a translation of my criminal record check (necessary so I can get temporary residency). So we took advantage of the bright sunshine and somewhat warmer weather, and made a touristy walk of it.
And this is the Stone Gate. It dates to the 13th century and was one of the entrances to the upper city. There's a chapel inside now, but it's still used as a passage between the upper and lower cities.