Be sure to have plenty of gas in the tank, because Avignon is worth making a detour for. Situated 30 miles from Mont Serein, it offers a few fabulous attractions, such as Palais des Papes and Place de l’Horloge. Nothing says living it up like a road trip does, so keep on cruising to Aix-en-Provence. It’s 45 miles away and also has a few excellent sights, such as Cours Mirabeau and Place des Precheurs.