Paestum was founded 600 B.C. by Greeks from Sybaris, which was at that time an important Greek city in Calabria. Local travertine provided the building material for the town walls and the temples. Greek settlers called the city Poseidonia in honor of the Greek sea God Poseidon. Main features of the site are standing remains of three major temples in Doric style, dedicated to Hera and Athena, and dating from the first half of the 6th century BC.