White Fortress, also known as Bijela Tabija, is an ancient stone fortress perched on the southeastern slopes of Sarajevo at 667 meters elevation. Built around 1550 and rebuilt between 1727-1739, this national monument once guarded the entrance to the Miljacka valley and served as a critical defensive position for the city. The ruins today offer stunning panoramic views of Sarajevo and the surrounding landscape. Constructed of stone, the fortress originally housed a gun-crew and ammunition storage, reflecting its strategic military role. The site remains one of Sarajevo's most significant historical landmarks, accessible by a 20-minute uphill walk from the Old Town.