Tholos of Delphi

The Tholos of Delphi is a circular temple within the Sanctuary of Athena Pronaia, designed by architect Theodore the Phocaean between 380-370 BC. The structure featured 20 Doric columns on the exterior colonnade and 10 or 13 Corinthian semi-columns inside the cella, with metopes depicting Amazonomachy and Centauromachy in high relief. Its floor combined white marble at the center with dark limestone from Eleusis toward the circumference. The building's function remains uncertain, with theories ranging from an arsenal to a sanctuary of Artemis. It is part of the Delphi UNESCO World Heritage Site.