As classically Greek-looking as any of Sicily’s temples, the one at Segesta is in fact an imposter, built (though never quite completed) in the Doric style by a Hellenised local tribe around 420 BC.
In 415 BC, the Athenian assembly led by Alcibiades, voted to invade Sicily. The city-state of Segesta had promised huge financial aid in return for assistance against its enemy Selinus.