France

Angers
Bordeaux
Bourg-St. Maurice-LesArc
Caen
Clermont-Ferrand
Dunkerque
Grenoble
La Rochelle
Laon
Le Havre
Le Mans
Lille
Loire Region
Lyon
Marseille 
Mont Blanc
Montpellier
Mulhouse
Nancy
Nantes
Nice
Orleans
Paris
Rennes
Rouen

Saint-Etienne (Paris)
Strassbourg
Tignes
Toulon
Toulouse
Val d'Isere
Ville Valenciennes
Villefranche-La Tour de Carol

Honorable Mention
Marne

 

 

Val d'Isere 

Does the FuniVAL qualify as a subway? Well, the 1 km funicular transports passengers and is 80% underground. You decide.