Teurnia
Lendorf, Austria
Teurnia (later Tiburnia) was a Roman city (municipium). Today its ruins lie in the western Austrian state of Carinthia. In late antiquity it was also a bishop's see (today being a Catholic titular see), and towards the end of Roman times it was mentioned as the capital of the province of Noricum mediterraneum.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).