If your trip to Allonnes is all booked but your itinerary is a bit on the empty side, we can give you a few hints and tips.Circuit de la Sarthe and St-Julien Cathedral are cool attractions that all serious sightseers should make time to visit. Map out a route and spend a while taking in each one.Not far from the city center, Bugatti Circuit is one spot to consider putting on your must-see list. 24 Hours of Le Mans Museum and MM Arena are also not far away and worth a detour.