On the tracks of the genius Vauban, from the Mediterranean to the Pyrenean summits, come and discover our magnificent bastioned fortresses, their original stories and their secrets... The citadel of Mont-Louis and the fortified city of Villefranche-de-Conflent are classified as World Heritage Sites by UNESCO as part of the network of major Vauban sites. So add these tourist sites to the program of your vacations in the Catalan Pyrenees.