Ancona - Piazza della Repubblica

The hub of Ancona's traffic is the Piazza della Repubblica. On its west side is the harbor, an oval basin 800-900m/875-985yd in diameter, the northern part of which is of Roman origin. At the north end of the breakwater is the Roman triumphal arch Arco di Traiano with an inscription recording that it was erected in A.D. 115 in honor of the Emperor Trajan and his wife and sister; to the west is the Arco Clementino (18th century).