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.
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6th-century basilica with amazing mosaics.
Built in the 6th century as an Arian cathedral, it has been quite drastically altered since then, featuring now a Baroque façade.
Arian Baptistery
Built by the Ostrogothic King Theodoric the Great between the end of the 5th century and the beginning of the 6th century.