Belgium Letterboxes

1. All Belgium letterboxes
2. Mystery boxes
3. Antwerp
4. Brussels
5. Brussels Region
6. Brussels-Capital Region
7. Bruxelles
8. Flanders
9. Flemish Brabant
10. Flemish Region
11. Hainault
12. Liege
13. Luxemburg
14. Unknown
15. Vlaanderen
16. Wallonia
17. Wallonie
18. Walloon Brabant
19. Walloon Region
20. West-Vlaanderen