Constructed primarily of fine Pentelic marble between 449 and 415 BC, the Temple of Hephaestus stands as the most completely intact classical Greek temple in the world. It features a six-column Doric facade and the sculptured metopes of its eastern front. Dedicated jointly to Hephaestus, the god of metalworking, and Athena Ergane, the goddess of pottery and crafts, the temple's extraordinary preservation is largely due to its conversion into the Christian Church of Saint George during the 7th century AD, which protected it from being dismantled for building materials over the centuries.