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Built by the Ostrogothic King Theodoric the Great between the end of the 5th century and the beginning of the 6th century.
© OpenStreetMap contributors
Built in the 6th century as an Arian cathedral, it has been quite drastically altered since then, featuring now a Baroque façade.
It is another notable Baroque style, with a Middle Ages campanile.
Built 5th century by the Roman imperial princess Galla Placidia. Initially it was also decorated by mosaics, but virtually none of them has been survived since then.
6th-century basilica with amazing mosaics.
Built in between 10th–11th centuries. Inside the church is a crypt permanently flooded with water, while adjacent to it is the tomb of Dante Alighieri (on the left from the facade). Bring coins as 1 one euro coin gives 1 minute of light to see the flooded crypt with fishes swimming around.
These ruins were an entrance to Chiesa di San Salvatore ad Calchi. A mosaic floors from the excavations of the palace proper were installed there in 1923.