科斯塔尼察要塞

科斯塔尼察要塞（Kostajnica Fortress）是克羅埃西亞的一座城堡，位於克羅埃西亞中部科斯塔伊尼察，靠近波赫國界。這座要塞可能修建於14世紀時期。近年城堡得到了克羅埃西亞文化部門的修復。

參考資料

Kruhek, Milan. Kostajnica u protuturskoj obrani Hrvatskoga Kraljevstva [Kostajnica in the Anti-Turkish defense of the Croatian Kingdom]. Povijesni prilozi (Croatian Institute of History). 2001, 20 (21): 71–97 [27 July 2020]. （原始内容 (PDF)存档于2020-10-25）（克罗地亚语）.
Miletić, Drago; Valjato Fabris, Marija. Stari grad u Hrvatskoj Kostajnici. Konzervatorsko-restauratorski radovi do završne prezentacije [Old Town in Kostajnica: conservation and restoration works – from the onset to the final presentation]. Portal (Croatian Conservation Institute). 2011, (2): 35–53 [20 October 2020]. （原始内容 (PDF)存档于2020-06-20）（克罗地亚语）.
Nadilo, Branko. Stari grad na unskom otoku u Kostajnici [Old town on the Una island in Kostajnica] (PDF). Građevinar (Croatian Association of Civil Engineers). 2003, 55 (6): 363–369 [20 October 2020]. （原始内容 (PDF)存档于2022-06-15）（克罗地亚语）.