Nis is the third largest city in Serbia and the main administrative center of the Nišava Okrug. Niš is industrial and commercial city and seat of an Orthodox bishop. In Niš you will find a university and a symphony orchestra, museums, theaters and various cultural institutions.
The Romans conquered the city 75 BC. Navissos was renamed to Naissus and became one of the most important castles of the Roman Balkans. The strategic road Via Militaris was passing Naissus, coming from Constantinople and Adrianopel - Philippopolis - Serdica - Naissus across the Balkan Peninsula to Singidunum (today Belgrade) and the former European Route 5 (now part E 75, part E 80).