As the legions left Burnum in 86 A.D., Emperor Hadrian proclaimed Burnum the Municipium and a town of Roman veterans. The town had a sanctuary, an Amphitheatre, a 15 km long aqueduct and paved streets. It was destroyed in 639 A.D. during Avar-Slav wars.

The camp remains include two localities: two arches of the pretoria (camp command) and the Amphitheatre which could, as assumed, accommodate between 6 to 10 thousand viewers and was built as a donation by the Emperor Vespasian.