There's also a subway system, which you can distinguish from the regular train system by the fact that it is in color. All signs in Brussels must be written in both French and Flemish, even place names, which means that all subway stations have two names, even though in many cases the two names are exactly the same, or very close. My favorites were Park Parc and Maalbaek Maalbeek. This is Schuman Schuman.