Belgium

I would be in Belgium for 2 days,I know there's the comis strip center to visit. Where else should I go?In layman term, what are the place I must visit or it would be consider that I never been to Belgium, in the same sense that 1 has to visit the Eiffel Tower when in Paris. Foodwise, what is THE food I must try and where it's located? Thank You I would be in Brussel,where should i visit other than the comic strip center and where to source for the great food.