Make sure you have a full tank of gas, because Montpellier is worth making a detour for. Located 40 miles from Castillon-du-Gard, it has some terrific attractions, such as Comedy Square and Fabre Museum. Nothing says living it up like a road trip, so keep on driving to Aix-en-Provence. It’s 55 miles away and also features a few attractive sights, such as Cours Mirabeau and Place des Precheurs.