We often travel to Belgium to see family. Near Tournai there are many different trains to see, including regular SNCB trains to Kortrijk, Brussels, and Namur, but also cross border trains to Lille in France. Just south of the city is the high speed line that carries TGV, Eurostar and Thalys services too.
We have a couple locomotive models from Belgium, including class 15 and 16, but these are not in mainline operation any more. We did spot some Belgian-made class 27s though. It is possible to find a nice representation by Lima if we wait patiently enough.
And of course Robin has his TGV… As fast as the real thing?