Bassae a subtly curved floor, though the columns have entasis. The temple is unusual in that it has examples of all three of the classical orders used in ancient Greek architecture: Doric, Ionic, and Corinthian. Doric columns form the peristyle while Ionic columns support the interior and a single Corinthian column features in the centre of the interior. The Corinthian capital is the earliest example of the order found to date. It was relatively sparsely decorated on the exterior. Inside, however, there was a continuous Ionic frieze showing Athenians in battle with Amazons and the Lapiths engaged in battle with Centaurs.
Doric Greek accepted that Doric originated in the mountains of Epirus in northwestern Greece, the original seat of the Dorians. It was expanded to all other regions during the Dorian invasion (c. 1150 BC) and the colonisations that followed. The presence of a Doric state (Doris) in central Greece, north of the Gulf of Corinth, led to the theory that Doric had originated in northwest Greece or maybe beyond in the Balkans. The dialect's distribution towards the north extends to the Megarian colony of Byzantium and the Corinthian colonies of Potidaea, Epidamnos, Apollonia and Ambracia; there, it further added words to what