When you visit the Turkish city of Diyarbakir, you must visit its most important archaeological and historical landmarks, including the Ulu Biden Borgo fortress, which is located to the southwest of the walls surrounding the city. It is very similar to the decoration of the fortress of the Seven Brothers. The double-headed eagle carved on the fort is a symbol of dominance and has an imposing appearance with a winged lion symbolizing strength. Do not miss visiting it with your family to learn about its history.