2. Avignon
Most of us know of this city because of its famous bridge in that nursery song, but there’s more to Avignon than its pont that spans half-way across the Rhône. As a former center of papal power, the pretty city is brimming with ornate art and architecture dating back 800 years. It’s medieval fortress and papal palace are particularly impressive. Stroll around the cobbled streets and soak in the historical and natural wonders of Avignon.