old town of Rimini

The Arch of Augustus is a gate in the former city wall of Rimini, Italy, in the form of a Roman honorary or triumphal arch. The arch was dedicated to the Emperor Augustus by the Roman Senate in 27 BC and is claimed to be the oldest large Roman arch still surviving...The construction of the Roman Amphitheatre (l’anfiteatro romano) was ordered by the Emperor Hadrian, as evidenced by the coin portraying the emperor that was found in the walls. Tha building dates back to the 2nd century AD...source wikipedia