Viminacium (Viminacium) is located on the right river bank of the river Mlava, not far away from its confluence with the Danube, on the territory of today’s settlement Stari Kostolac. A wider area of Velika Morava and Mlava into the Danube has always taken a significant strategic position regarding the control of the Balkans and favorable life and development natural conditions.
At the early beginning of Podunavlje romanization and the Roman Empire border establishment (Limes) along the Danube in I century AD, Viminacium was the headquarters of smaller military units, until VII Claudius Legion arrival in the second half of II century when it turned into a Legionary camp; soon after it rapidly started developing and grew into the capital of Moesia Superior province. It attained the status of a city at the beginning of II century, and in the first decades of III century it reached its peak, when it became a colony during the reign of Gordian III. In the year 239 it acquired the right to mint money and with that year Viminacium local era begins. In IV century it became a significant Episcopal headquarters. It was demolished in the Huns invasion, probably around the year 443 and was never again reestablished.
Its significance and intensive life are seen through numerous archaeological remains and written sources. Apart from the military camp, the city also had a developed settlement with paved streets, water system, thermae, amphitheater, port on the Danube and other numerous public and private buildings decorated with rich mosaics and wall paintings. Together with the settlement and the military camp, a number of necropolises spreading to the south and north of the city were formed. Over 13.000 graves were examined with more than 35.000 objects found in them, many of which are rarities. Wall tombs from IV century stand out in particular; their inside is fresco – painted.
Viminacium was established as archaeological findings in 1949 as area “Gradac” and a terrain called “Čair” which is a part of today's locality Viminacium established in 2009.