Incredible preserved medieval city. The medieval wall is one of the best preserved in Europe. There…read moreis a cut out in the wall the size of a small door to allow pedestrians in and out of the city. Years ago when the Rhone flooded this opening was sealed off and the wall saved the city from flooding. It appears that tourism and pickpockets are the major industries in this city. Be careful don't let the quaint location fool you. There is a lot of crime in this city and it's covered up by the tourist industry.