If you like to discover Roman heritage, antique places, Byzantine churches and forgotten cities – Serbia is the right place for you. On the teritorry of Serbia, believe it or not, 18 Roman Emperors were born. One third of all Roman Emperors were born in places such as Sirmium ( today Sremska Mitrovica ), Viminacium ( today Kostolac ) or Felix Romuliana near Zaječar. International tourists are becoming…