The ruins of Selinunte are the most impressively sited in Sicily. The huge city was built in 628 BC on a promontory overlooking the sea, and over two and a half centuries became one of the richest and most powerful in the world. It was destroyed by the Carthaginians in 409 BC and finally fell to the Romans in about 350 BC, at which time it went into rapid decline and disappeared from historical accounts.