Arles is a town with some big sights to be sure, but also full of interesting art galleries, major photographic events and little artistic flourishes added by local people - a funky, altered lamppost, a mad shop front, a bizarre sculpture peeping out of someone's window.
Arles' most famous sight, Les Arenes, is a huge Roman arena which holds bullfights [without the death part].
A great picture taking spot is the famous Rhone River that forks in to two branches just upstream from the city.