Ariminum was founded in 268 BC by Roman farmer-soldiers who crossed the Apennines and established their colony along the river Ariminus. The original layout of the city consisted of the cardo maximus and decumanus maximus intersecting in the central forum. In the Imperial Age, Augustus reorganized the city's streets and endowed it with important monuments, including the Augustus Arch, Tiberius Bridge over the Marecchia River, aqueducts, and a drainage system. Hadrian likely built the amphitheater in the 2nd century.

1. Ariminum was a Roman colony founded in 268 B.C, on the estuary of the river of the same
name. In that year a contingent of 6.000 farmer-soldiers with their families crossed the
Apennines and came to the valley of the river Ariminus, the present-day Marecchia.
The original nucleus of the City of Ariminum consisted of the cardo maximus (now Via
Garibaldi – Via IV Novembre) and the decumanus maximus (Corso d’Augusto), the street
which links the Via Flaminia to the Via Emilia. Where the two roads cross, in what is now
Piazza Tre Martiri, was the forum, the hearth of public and economic life in the city.
In the Imperial Age Ariminum (Rimini) was re-founded by Augustus who reorganized the
street plan of the town and endowed it with important monuments (from the Augustus Arch
to the Tiberius Bridge over the River Marecchia), aqueducts and a drainage system. The
Amphitheatre was built in the second century, probably by the emperor Hadrian.
TIBERIUS BRIDGE
AUGUSTUS ARCH
MALATESTA TEMPLE

2. The Augustus Arch was built by the Senate of Rome in hounour of
Octavian to celebrate the restoration of the main streets.

3. The Bridge of Tiberius is one of the most magnificent and best-preserved Roman bridge that
leads to Borgo San Giuliano, where there is the church of San Giuliano, once a Benedectine
Abbey, much altered in the sixteenth century.