davidsbeenhere.com Take the beautiful coastal drive to Cape Sounion's Temple of Poseidon with David's Been Here. Built in 440 BC in dedication to the Greek god of the sea (Poseidon), the Temple of Poseidon is a marvel of the ancient world with some stunning vistas overlooking the Aegean. Visit the amazing temple ruins, soak in the Attica Peninsula's best sunset, and wrap up your day in one of the town's fish taverns for the real local experience.