1. To eat a Liege waffle; and
2. I read once that you should aim to visit as many countries as years you have lived and visiting Belgium gets me one more entry on my list (Belgium is number 27).
So, what do you do when you have five hours in Brussels? You walk from the train station to the Grand Place, eat a waffle and end up at the Cinema Multiplex watching Horrible Bosses whilst it storms outside.
The Grand Place (the weather looks good now.....)