This is the most important ancient Greek site south of Naples. Paestum has three massive Doric temples in an excellent state of repair: the Basilica, or Temple of Hera (mid-6th century BC); the Temple of Neptune (5th century BC); and the Temple of Ceres, thought to date between its two neighbors. One of its finest treasures is the Tomb of the Diver.
Paestum (/ˈpɛstəm/ PEST-əm, US also /ˈpiːstəm/ PEE-stəm, Latin: [ˈpae̯stũː]) was a major ancient Greek city on the coast of the Tyrrhenian Sea in Magna Graecia (southern Italy). The ruins of Paestum are famous for their three ancient Greek temples in the Doric order, dating from about 550 to 450 BC, which are in an excellent state of preservation. The city walls and amphitheatre are largely intact, and the bottom of the walls of many other structures remain, as well as paved roads. The site is open to the public, and there is a modern national museum within it, which also contains the finds from the associated Greek site of Foce del Sele. Wikipedia