Fort Vaux

Fort Douaumont (French Fort de Douaumont) was the largest and highest

Ouvrage Ferme Chappy was at the western end of the Fortified Sector of

Ouvrage Latiremont is an ouvrage of the Maginot Line, located in the

Ouvrage Mauvais Bois formed part of the Fortified Sector of Crusnes on

Ouvrage Bois du Four is a lesser work (petit ouvrage) of the Maginot

Ouvrage Bréhain was part of the Fortified Sector of Crusnes of the

Ouvrage Aumetz is a small work, or petit ouvrage of the Maginot Line.

Differdange Castle (French: Château de Differdange), located on a

The Alba Carolina Citadel (Romanian: Cetatea Alba Carolina) is a

Fort Copacabana (Portuguese: Forte de Copacabana, IPA: ]) is a

Kilitbahir Castle (Turkish: Kilitbahir Kalesi) is a fortress on the

Menara Santo Vicente (Portugis: Torre de São Vicente) atau Menara

Castillo de Alcalá la Real (or Fortaleza de La Mota) is a castle in