Routes coverying country: Belgium

Europe by Rail: The Definitive Guide
Route 17 in Europe by Rail is short and sweet, taking in a feast of fine cities as well as, especially in the early stages, some engaging rustic landscapes. It’s not a route where you need ever bother about advance booking and for holders of Interrail or Eurail passes, there are no supplements to pay.
Lille and Cologne are two cities with very strong regional identities within their respective countries, but they could scarcely be more different. Lille is altogether more downbeat - and is radical while Cologne is conformist.
Fifty years ago, the direct train to Basel stayed entirely west of the Rhine, traversing Belgium, Luxembourg and France along the way. The through trains have gone, but the railways are still there. Regular regional trains – all offering a high level of comfort – still ply the entire route.