San Juan de Ulúa, also known as Castle of San Juan de Ulúa is a l
Varberg Fortress was built in 1287-1300 by count Jacob Nielsen as
Palamidi is a military fortress to the east of the Acronauplia in the
The Fortress of Luxembourg refers to the former fortifications of
Suomenlinna, until 1918 Viapori, (Finnish), or Sveaborg (Swedish), is
Ehrenbreitstein Fortress (German: Festung Ehrenbreitstein) is a
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The Belogradchik Fortress (Bulgarian: Белоградчишка крепост, Bel
Fortress Marienberg (German: Festung Marienberg) is a prominent
Olavinlinna (svenska. Olofsborg; literally St. Olaf's Castle) is a
Skansen Kronan (English: Redoubt Crown) is a redoubt in Gothenburg,
The Heptapyrgion (Ἀρχαία ἑλληνικὴ. Ἑπταπύργιον), mo
Vyborg Castle (Russian: Выборгский замок, Finnish: Viipurin linna
The Tobolsk Kremlin (Russian: Тобольский кремль) is the sole stone
Häme Castle (Hämeen linna in Finnish, Tavastehus slott in Swedish) i
Чембало — (italiano. Cembalo, русский. Чембало, qırımt
Аккерма́нська фортеця (Білгород-Дністровс
The Fortezza (Ελληνικά. Φορτέτζα, from the Italian for 'fortress') is
The Kasbah of the Udayas is a kasbah in Rabat, Morocco. It was built
La citadelle d'Arras est construite par Vauban de 1668 à 1672, pour
