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Vasto, town, Abruzzi regione, south-central Italy. It is a beach resort on the Adriatic Sea, with brickmaking, candlemaking, and agricultural-processing industries. The town, the ancient name of which was Histonium, has an archaeological museum. There is a 13th-century castle, and the town cathedral has a facade and Gothic portal dating from the same period. The palace of the D’Avalo family dates from the 16th century. Pop. (2006 est.) mun., 37,657.

This article was most recently revised and updated by Amy Tikkanen.
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