Nettuno is a town of the Metropolitan City of Rome in Lazio, 60 kilometers (37 miles) south of Rome. A resort city and agricultural center on the Tyrrhenian Sea. Its name is perhaps in honor of the Roman God Neptune. According to a theory, the town would be a direct survival of the Roman Antium, whose territory almost entirely corresponded to Nettuno and modern Anzio. Nettuno is a popular tourist destination. Sights include a well-preserved old quarter, the Borgo Medievale, with mediaeval streets and small squares, and the Forte Sangallo, a castle built in 1503 by Renaissance architect Antonio da Sangallo the Elder. Nettuno is also a center of pilgrimage to the shrine of Saint Maria Goretti, in which a crypt houses the mortal remains of the saint.