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 order Doric order had not been very widely used, though "Tuscan" types of round capitals were always popular, especially in less formal buildings. It was sometimes used in military contexts, for example the Royal Hospital Chelsea (1682 onwards, by Christopher Wren). The first engraved illustrations of the Greek Doric order dated to the mid-18th century. Its appearance in the new phase of Classicism brought with it new connotations of high-minded primitive simplicity, seriousness of purpose, noble sobriety. In Germany it suggested a contrast with the French, and in the United States republican virtues. In a customs house, Greek Doric suggested incorruptibility;