Doboj is a town famous for its medieval fortress standing on a hill. A historic mosque has also been preserved here, and in the vicinity there is a cave open to the public.
The Doboj Fortress, the most important attraction of the city, is a stronghold erected in the 13th century on the site of an earlier earth stronghold. Attacked many times during the wars with the Turks, it was expanded until the 17th century. Currently, its stone walls house museum exhibitions as well as historical and outdoor events.
The city suffered heavily during the Balkan war at the end of the 20th century. Selimija Mosque and the Church of the Nativity of the Blessed Virgin Mary have survived from the old buildings. Many buildings, such as the Church of St. The Apostles Peter and Paul and the Church of Sockovac were built from scratch. You can learn about the history of the city at the Regional Museum in Doboj.