Brussel Midi / Zuid Station, known as Brussels South in English, is the largest train station in Brussels (although not the busiest, that's Centraal). It handles the international services including Eurostar, Thalys and ICE along with a number of inter city routes.
Brussels South has all of the amenities you'd expect from an international train station at the heart of Europe.
Rue de France, Saint-Gilles 1060
Map showing the location of Brussel Midi / Zuid Station