If the weather's taken a turn for the worse, why not spend your day at Centre Historique de la Résistance et de la Déportation? You'll be surprised just how many interesting facts you can learn about the past here.
Located in Romans-sur-Isere, this collection of historical artifacts is worth including in your schedule. But you'll find plenty more to discover in the area. Jardin Zen d'Erik Borja, Excalibourg, and International Shoe Museum aren't too far away from Centre Historique de la Résistance et de la Déportation.