Category: fortification
- Halifax Citadel
- Raipur Darwaja
- Prem (Premabhai) Darwaja
- Panch Kuva(Sarangpur) Darwaja
- Saint-Malo
- Jamalpur Darwaja
- Kalupur Darwaja
- Jama Masjid
- Panchkuwa Darwaja
- Queen’s pavilion
- King's Pavilion
- Castillo de Santa Ana de Las Roquetas
- Castrul roman de la Olteni
- Fortification
- Shuiguan Great Wall (Ming dynasty)
- Komollói római kasztrum
- Khanpur Darwaja
- Sarkhej Roza
- Castrul roman de la Pietroasele
- Dariapur Darwaja
- Delhi Darwaja
- Sarkhej Dargah
- Sarkhej Tank
- Astodia Darwaja
- Porta Praetoria
- Castra of Sfârleanca
- Porta Principalis
- Porta Saracena
- Di tích Thành Tỉnh Đạo
- Castrul roman de la Islaz - Racoviță
- Khan-E-Jahan Darwaja
- Raikhad Darwaja
- Manek Tower
- Great Wall of China
- Huangtaizi Great Wall (Ming dynasty)
- Bunker StP112 1 R680
- Bunker StP112 2
- Bunker StP112 3
- Emplacement la Hougue 3
- Norman Castle
- Ping'an fort ruins
- Ancient fortress
- Walled town of Wan'an
- Guanxi old castle
- Ancient city of Yuezhou
- Ancient city walls of Balkh
- 古阳平关
- Ancient fort
- Ruined fort
- Fort
- Tongguan Fortress walls
- Ancient Wall
- Ajanta Fort
- Castrul roman de la Drumul Carului
- Batterie
- Minotto fortification (1646–47)
- Main entrance to the fortress
- Castillo Vilamalur
- Castrul roman Praetorium II
- Castrul roman de la Hoghiz
- Lotrioara fortress - ruins
- Castrul roman de la Putineiu
- Castrul roman de la Orheiu Bistriței
- Fortificația romano-bizantină La Milan
- ДЗОТ
- Centre Bastion Battery