There is more to find of Ravenna's mosaics in this 6C baptistry that owes its name to the Bishop Neoni. These mosaics with vivid and contrasting colours depict the Baptism of Christ accompanied by a retinue of apostles.

This is the historical centre of Rimini. The square is bordered by the town hall and the palazzo dell'Arengo (or Assembly palace) and the palace of the Podestà. All these buildings date from the 13 to 14C, but most have been modified many times over the years.

Successor to Odoacer, the Goth king Theodoric (493-526) ruled over Ravenna and contributed to the embellishment of the city. His mausoleum, built in 520, is a curious building, built from stones of enormous size and crowned with an astonishing monolithic dome 11m in diameter in Istrian stone. The very sober interior has a Romanesque porphyry basin converted into sarcophagus.

The Arians were the followers of an Alexandrian priest, Arius, who denied the divinity of Christ, a theory widely condemned by the successive councils of Nicaea (325) and Constantinople (381). This did not prevent the Goths from following it for several centuries more. The baptistry was built in the 6C, almost certainly under Theodoric and has a dome decorated with attractive mosaics.