What! no Mussels, Waterzooi, Carbonnades. . . Seriously, Belgian food and beer is great and should be sampled.
I second the suggestion about Brugge, although I wouldn't call it a village, rather a good sized town of 45,000 people. It's not just that it survived WWII but rather that it has survived hundreds of years without losing its essential character. It really is one of the most beautiful towns in Europe.
I would certainly also suggest the Grand Place (Grotemarkt) - a spectacular square and the center of the city, the Cathedral of Saint Michael and Gudula, The museum of fine arts if you like old masters, the Cinquantenaire museum if you like the V & A in London.
My impression of the EU buildings was the impression that some have of the European commission it self - faceless bureaucracy (represented in architecture) and really not worth seeing.
Check out
http://www.brusselsdiscovery.com/wab...ndex.jsp?lg=EN
for more. I used this site and its related brochures when I was there.