Uniquely Belgian Breads?

Not sure what got me onto this idea, but I started thinking about Belgian bread today. I've hit the google and tried the search. Waffles aside, seems like there is a restaurant in Chicago with that name. Other than that, I'm left wondering about the breads of a country that has so many of the world's best beers (well, my favorites at least). Specifically if there are unique breads from the lambic-producing region south of brussells or their are trappist breads on par with their better ales.