Only in Belgium for 4 days, staying in Brussels. Thought it might be too much time for one city so we were going to do one or two days trips. We were thinking of Bruges and Luxembourg - so we will only have the day in those places. Thanks for the tips, we want to be prepared going so we don't miss the main attractions.
This is a link to the tourist office
Stay in Belgium, you can do so many things in 4 days.
Stay in belgium. You will hardly have proper time to see any more than banks in L'Brg.
I agree, if you like dog poo & graffiti and you are not particularly fussy about cleanliness then don't come here. Stay put, you'll love Louvain - Leuven .
On the other hand, if you don't like dog poo or graffiti, than you might prefer Luxembourg. :P