Blagaj Fortress, also known as Stjepan-grad, crowns a high karst hill 310 meters above sea level and 266 meters above the source of the Buna River. Originally an Illyrian settlement fortified during Roman times, the site gained prominence in the 14th and 15th centuries as the residence of Duke Sandalj Hranić and Herzog Stjepan Vukčić Kosača. The fortress represents layers of historical influence from Bosnian, Ottoman, and Roman periods, offering stunning vistas across the landscape. At its foot stands a 16th-century Sufi dervish monastery, creating a unique spiritual and historical ensemble. Now designated a national monument with free admission, the site reflects the interweaving of medieval fortress architecture and Islamic religious heritage that characterizes Bosnia's complex cultural identity.
