Category: fortification
- Fort Smallwood Park
- Legions Fort
- Fort Henry
- Inner Citadel of the Fortress of Arad
- Fort Hamilton
- Fort Monmouth Historic District
- James Woodhill Park, Rocky Butte
- Gate of China
- Strzelnice
- Grīva Prison
- Fort Barrancas
- Advanced Redoubt of Fort Barrancas
- San Carlos de Austria
- Fort Morgan
- Fort Gaines
- Fort William Henry Museum and Restoration
- Bergenhus Fortress
- Rasnov Fortress
- Fortress
- Golden Hill Fort
- Fort Albert
- Fort Victoria
- Yarmouth Castle
- Fort Scammel
- Hotin Fortress
- St. Mawes Castle
- Ammunition warehouse of Mangaļsala battery
- Pendennis Castle
- Špilberk castle
- Marvos Fort
- United States Bullion Depository
- Fort Hartsuff State Historical Park
- Historic Center
- Caine's Head Fort Mcgilvery
- Fort of San Tiago
- Bare Island
- Fort Lesley J. McNair
- Suomenlinna Sea Fortress (Krepost Sveaborg)
- Fort Point National Historic Site
- Mangup Qale cave town
- Fortress Liezele
- Chapel Bridge
- St Angelo's Fort / Kannur Kotta
- Astrakhan Kremlin
- Petrovaradin Fortress
- Old City of Rhodes
- Diu Fort
- Gates of the Good Friday (Pyatnitskiye)
- Fort Clinch
- Fort Caroline