Make sure you have enough gas in the tank, because Grenoble is worth a detour. Situated 50 miles from Montgenevre, it has some terrific attractions, such as Museum of Grenoble and Fort de la Bastille. Chambery is another destination to consider. It’s situated just 60 miles away. If you make the trip here, Chateau de Chambery and Carre Curial should be top of your itinerary.