Category: fortification
- Aragonese Castle
- Fort Wall
- Daria Bahadurgad Fort
- Soldiers House
- Fort de la Briche (Saint-Denis)
- Shahapur Fort
- Chandragutti Hill & Fort
- Perperikon Archaeological Complex
- Channagiri Fort
- Fort Liédot `
- Forte Castelo do Mar
- Manjarabad Fort
- Bahadur Banda Fort
- Maginot Line Petit Ouvrage Bois Karre
- Maginot Line Ouvrage Kobenbusch Ammunition Entry Block
- Fort Wall; Third Bastion
- Fort d'Aubervilliers
- Tammneeme coastal defense battery
- Mudgal fort
- Kalaja e Vjetër e Vushtrrisë
- Maginot Line Ouvrage Bois Karre Block 1 (Singleton)
- Bonriparo fortress
- Maginot Line Barrungshof Shelter
- Maginot Line Helmreich Shelter
- Maginot Line Casemate Basse-Parthe Est - C46
- Maginot Line Casemate Basse-Parthe Ouest C45
- Maginot Line Bois-Karre Shelter
- Maginot Line Ouvrage Kobenbusch Block 1
- Maginot Line Ouvrage Kobenbusch Block 2
- Maginot Line Ouvrage Kobenbusch Block 3
- Maginot Line Ouvrage Kobenbusch Block 4
- Maginot Line Ouvrage Kobenbusch Block 5
- Maginot Line Ouvrage Kobenbusch Block 6
- Maginot Line Ouvrage Kobenbusch Block 7
- Maginot Line Ouvrage Kobenbusch Personnel Entry Block
- Fortim
- Maginot Line Route de Luxembourg Shelter (demolished)
- Maginot Line Ouvrage Kobenbusch
- Fortress Trancrémont Combat Blocks
- Block B I
- Block B II
- Block B III
- Block B.IV
- Main Ventilation Ports
- Energency Escape Ports
- Casemate C II
- Casemate C II
- Casemate C IV
- Block B O
- Block B P
- Raichur Fort
- Mura etrusche - Tratto del Convento di San Girolamo