It was built with stone and had a basement room with a floor. What lies under the ground is not known, it had never done any research in this area. The set was strictly according to the cardinal, so that the entrance facing south. It is situated at an elevation of 560 m / nm, and has an excellent overview of the territory by the Sava and deep in Bosnian territory. When the nice clean time with her ​​can be seen to Derventa on the Bosnian side. The great unknowns when it was built or who built it. These areas were passing crusaders returning from military campaigns in the Holy Land, and are often the area and devastated. Croats in this area led the bloody battle just with the Crusaders. In close vicinity of Gracanica is Rudinska Abbey, Podvrškog above the village, built by the Templars. Because of the precision and quality of building construction, it is not excluded that the Gracanica built as a protection for Teplari Rudinsku abbey. The monumental size is thirty times twenty feet surrounded by a moat. Surely that was used as a military facility and as a reconnaissance and relay stations across the towers above the village and Gucani Gradec Brestovac above, is associated with the Posavina Pozega and Grand.