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.
The Five Orders of Architecture five orders, with indication of their shadows and the first principles of construction"; "The Five Orders of Architecture according to Giacomo Barozzio of Vignola, to Which are Added the Greek Orders"; and "The five orders of architecture, the casting of shadows and the first principles of construction based on the system of Vignola". The book tackles the five orders, Tuscan, Doric, Ionic, Corinthian, and Composite in separate sections, each subdivided in five parts on the colonnade, arcade, arcade with pedestal, individual pedestals, and entablatures and capitals. Following those 25 sections were some less related parts on cornices and other elements.