When we were in Italy about 20 years ago, we visited this beautiful old walled city, and I'm hoping to track it down for an upcoming visit. Unfortunately, I can't find any of my photos from the visit, and even at the time I don't think we knew what the name was. I'm hoping I can give enough details for a local to help me find it again ...
What we do remember is this: we were on the Autostrada from Naples, heading towards Venice. We were on the E35 because we skirted Rome, but we weren't going to see Florence. We stayed on toll roads for a few more hours, then exited. The town we encountered first was reasonably sized, but only had a few major roads going through and was having a big festival so traffic was a mess. We ended up leaving the town and driving through olive tree orchards for a while on a little (barely 2-lane) road. We encountered no other towns or villages for close to an hour as the road started to climb and got windy with beautiful views from hillsides. Eventually we came around a corner and were faced with a curving city wall on our right with parking spaces and a bunch of old men sitting in chairs watching the world go by. We figured there had to be a restaurant so we parked and walked through the gate, cheerfully saying "Buonasera" (one of our few Italian words) to everyone. Through the gate was a single street, two streets at the most, and a few delivery vans so you could tell cars could get in, but nobody parked inside the walls, there wasn't room. The street was lined with 2- or 3-story apartments and all the old women came out to stare at us. We got to the end of the street which was also the end of the village as we were at the top of a rather steep cliff, and there was only a stairway leading down to the bottom of the valley (and nothing to see down there). So we walked back out the street, got in the car, and kept going along the road we were on. Around the corner on the left we found a restaurant and a gas station.
I know that's more prose than useful details, but again I'm hoping someone familiar with the area can suggest some possibilities, I'm thinking that if I see it on Google Maps I might recognize it!