Segesta, one of the best-preserved and most beautiful of all the Greek archaeological sites in the Mediterranean, Sicily, Italy. Segesta (or Egesta), located in the northwest corner of Sicily, was an important trading town from the 7th century BC onwards. Situated on the strategically advantageous slopes of Mt. Barbaro, yet still close enough to the coast to support a trading port, Segesta established itself as the most important regional town of the Elymi people. Flourishing in the 5th century BC, Segesta continued to hold important status as a trading center into Hellenistic and Roman times.