Category: fortification

  1. King's Pavilion
  2. Castillo de Santa Ana de Las Roquetas
  3. Castrul roman de la Olteni
  4. Fort Neuf (Marine Nationale)
  5. Shuiguan Great Wall (Ming dynasty)
  6. Sarkhej Tank
  7. Site of Yeoyeon fortress
  8. Chikhali Gadhi
  9. Castra of Sfârleanca
  10. WW2 Asperges
  11. Mountain fortress of Chesm-e-Shafa
  12. Great Wall of China
  13. Huangtaizi Great Wall (Ming dynasty)
  14. Bunker StP112 1 R680
  15. Bunker StP112 2
  16. Bunker StP112 3
  17. WW2 bunker
  18. Tobruk
  19. Tobruk
  20. Remains Atlantikwall
  21. Remains Atlantikwall
  22. Remains Atlantikwall
  23. Bunkers
  24. Tobruk
  25. Tobruk
  26. Tobruk
  27. Batterie
  1. Bunkers
  2. Shore battery
  3. Atlantikwall remains
  4. Bunker
  5. Stellung
  6. Bunker
  7. Bunker
  8. Bunker
  9. Trench
  10. Atlantikwall bunker
  11. Bunker
  12. Jijia Fort
  13. Hechi Fortress
  14. Athani Fort
  15. Trace of fortress
  16. Baluarte de San Sebastián
  17. Jin-era fortress walls
  18. Fortress ruins
  19. Ancient city ruins
  20. Huanghua Fortress
  21. Longquan Monastery
  22. Ruin of Huayang Fortress
  23. Atlantikwall structure
  24. Trench
  25. Bunker
  26. Bunker
  27. Ringstand
  1. Ringstand
  2. Bunker
  3. Ringstand
  4. Bunker
  5. Wusha Fortress
  6. Pyongyang Castle
  7. Haengyong Fortress
  8. Ping'an fort ruins
  9. Ancient fortress
  10. Walled town of Wan'an
  11. Guanxi old castle
  12. Ancient city of Yuezhou
  1. Ancient city walls of Balkh
  2. 古阳平关
  3. Ancient fort
  4. Ruined fort
  5. Fort
  6. Tongguan Fortress walls
  7. Ancient Wall
  8. Ajanta Fort
  9. Castrul roman de la Drumul Carului
  10. Batterie