Belgium Letterboxes

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