Temple of Hephaestus
Perched on a hilltop on the western edge of the ancient Agora of Athens, the Temple of Hephaestus dates from the fifth century BC, likely around the same time as the Parthenon. Used as a Christian church during the Middle Ages, it preserves a spectacular range of original features, including friezes, columns, and even its roof. Many consider it the most intact Greek temple in all of Greece.
...