Ravenna is the capital city of the Province of Ravenna, in the Emilia-Romagna region of Northern Italy. It was the capital city of the Western Roman Empire from 408 for most of the 5th century until its collapse in 476. It then served as the capital of the Ostrogothic Kingdom until it was re-conquered in 540 by the Byzantine Empire. Afterwards, the city formed the centre of the Byzantine Exarchate of Ravenna until the last exarch was executed by the Lombards in 751.
Although it is an inland city, Ravenna is connected to the Adriatic Sea by the Candiano Canal. It is known for its well-preserved late Roman and Byzantine architecture, with eight buildings comprising the UNESCO World Heritage Site "Early Christian Monuments of Ravenna". Because of the high concentration of mosaics, the city has been associated with workshops and schools teaching mosaics, and is often given titles like the "capital of mosaics".
Wikipedia https://en.wikipedia.org/wiki/Ravenna
Coordinates 44°24'58.109" N 12°12'6.342" E