THE CLASSICAL TEMPLES OF ANCIENT GREECE were built according to the belief that certain forms and proportions were pleasing to the gods. There were three main ancient Greek architectural orders (styles), which can be distinguished by the decoration and proportions of their
columns, capitals (column tops), and entablatures (structures resting on the capitals). The oldest is the
Doric order, which dates from the seventh century BC and was used mainly on the Greek mainland and in the western colonies, such as Sicily and southern Italy. The Temple of Neptune, shown here, is a classic example of this order. It is hypaethral (roofless) and peripteral (surrounded by a single row of columns). About a century later, the more decorative Ionic order developed on the Aegean Islands. Features of this order include volutes (spiral scrolls) on capitals and acroteria (pediment ornaments). The Corinthian order was invented in Athens in the fifth century bc and is typically identified by an acanthus leaf on the capitals. This order was later widely used in ancient Roman architecture.