Fortress of Solitude - Wikipedia

What are some benefits of having a fort or a fortress? - Quora

Fortresses and Defense Walls - Crystalinks

BalkanViator - Koules Castles (or previously known as Rocca a Mare, meaning Sea Fortress) was built as a powerful fortress to protect the port of Heraklion. However, in 1669, the Turks occupied

Smbataberd Armenian Meaning Fortress Smbat Prince Stock Photo 1538231291

Yedikule Fortress (meaning Fortress of the Seven Towers)

Fortification, Military Science & History of Defense Structures

Castles and Fortresses on Framed Name Meaning Prints.

The Eugenic Fortress

East view of the ancient city and castle of Old Sarum, above Salisbury Plain. The Celts referred to it as 'Sorviadum' meaning 'the fortress by the gentle river' (the River Avon) Date

Acra (fortress) - Wikipedia