- Bodensee
- Bristol Pubs
- Bunker et forteresse abandonnée .
- Campus Galli
- Dutch Castles and Forts
- Fortresses, forts & fortifications of the World (photo guide)
- I love the bunker
- Ligne Maginot
- Military Decay
- Naval history and warships
- Old Bunkers
- relics of the 2nd world war 1939--1945
- Submarinos/Submarines/UBOOT
- The Great War 1914 - 1918
- Vauban - fortifications - fortress
- World War I
- WWII bunkers