2003
Towers and Fortresses – Fortress Kostajnica 15th – 18th Century


[Towers and Fortresses - Fortress Kostajnica 15th - 18th Century, type UT]


[Towers and Fortresses - Fortress Kostajnica 15th - 18th Century, type UU]


[Towers and Fortresses - Fortress Kostajnica 15th - 18th Century, type UV]

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