Bihać

The Fethija Mosque (Serbo-Croatian: Fethija džamija) is a mosque and former Catholic church, located in the town of Bihać, in the Federation of Bosnia and Herzegovina political division of Bosnia and Herzegovina. Built in 1266 as a church, it is the oldest Gothic building in the country.

Bihać is a city and the administrative centre of Una-Sana Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. It is situated on the banks of river Una in northwestern Bosnia and Herzegovina, in the Bosanska Krajina region close to the border with Croatia.

The Una River near Bihać is celebrated for emerald water, forested banks, and rafting — one of the most beautiful river landscapes in the Balkans.

Ključ Fortress is a medieval fortress in Bosnia and Herzegovina, above the modern-day town of Ključ. It is located on an elongated slope on high rocks that dominate the valley of the river Sana.

Ostrožac Castle (Bosnian) is a castle located in Bosnia and Herzegovina in the Una-Sana Canton on the outskirts of the town of Cazin, in the village of Ostrožac. The castle dates back to the 13th century when Ostrožac was part of property of the Croatian noble house of Babonić.

Una National Park (Serbo-Croatian: Национални парк Уна, Nacionalni park Una) was established on 29 May 2008 around the rivers Upper Una River, Krka and the Unac. It is Bosnia and Herzegovina's largest national park.

Štrbački buk (Serbian Cyrillic: Штрбачки бyк) waterfall is a 25m high waterfall on the Una River (296m altitude). It is situated in Croatia and Bosnia and Herzegovina (Una-Sana Canton, city Bihać, settlement Doljani and Celije).

Martin Brod (Serbian Cyrillic: Мартин Брод) is a village in the municipality of Bihać, Bosnia and Herzegovina. It is mostly known for its proximity to Una National Park, which is Bosnia and Herzegovina's largest national park.

This is a list of fortifications in Bosnia and Herzegovina, including fortresses and castles, arranged alphabetically. Bosnian archaeologist and historian of the Middle Ages, Pavao Anđelić, posited that Bosnia and Herzegovina is a home of great number of forts, fortresses, castles, including a number of walled city-fortresses, in various degrees of preservation, and built in different stages of Bosnian history.