Category: fortification

  1. Fort Nr. 12 (Eulenburg)
  2. Fort Nr. 6 (Königin Luise)
  3. Castle Ring
  4. Portal de la Nevera
  5. Bukhansan mountain fortress
  6. Fort Crown Point
  7. Maginot Line Gros Ouvrage Hackenberg (A19)
  8. Maginot Line Ouvrage Immerhof
  9. Ghar al-Milḩ / غار الملح
  10. Segsbury Camp
  11. Château d'Olhain
  12. Koźle Fortress
  13. Dzieło Koronowe na Biskupiej Górce
  14. Gdansk's Head Fortress
  15. Fort W XIII "San Rideau" ("Brzeg")
  16. 5 Forts
  17. Newhaven Fort
  18. Trencrom Hill
  19. Montfort castle (Starkenberg)
  20. Fort Wilhelm
  21. Малое укрепление (форт Карлинек)
  22. Walls of Fort Frontenac
  1. Fort des Dunes
  2. Camp Funston
  3. Copacabana Fort
  4. Old Kurram Forte
  5. Ghaleh bagh-e Hajebi
  6. Piscina do Lord
  7. Pahpa Gente 3 or Jangadas
  8. Fort William
  9. Fortress Josefov (Josefstadt)
  10. Arunachala Shanmugham temple
  11. Forte Centrale
  12. Festung Vitznau
  13. Landguard Fort
  14. Old Fort Bliss
  15. Fort Vallonia
  16. Fort Noisy
  17. Fort Stewart
  18. Fünfknopfturm
  19. Ruins of the Western fort
  20. Fort Cronkhite's water reservoir
  21. Rock bin (site)
  22. Fort Barry
  1. Historic Old Fort Park
  2. Castelo de Santa Cruz
  3. Battery Burnham
  4. Stables (site)
  5. Bore Sight Mast and 40mm AA AS Site No. 1
  6. Fort Baker
  7. Ridge Battery
  8. Fort Miley
  1. Kaldurg Fort
  2. Fort Winfield Scott
  3. Building 412
  4. Building 411
  5. Building 410
  6. Fort Baker Marine Repair Shop