Classical order Classical order An order in architecture is a certain assemblage of parts subject to uniform established proportions, regulated by the office that each part has to perform. Coming down to the present from Ancient Greek and Ancient Roman civilization, the architectural orders are the styles of classical architecture, each distinguished by its proportions and characteristic profiles and details, and most readily recognizable by the type of column employed. The three orders of architecture—the Doric, Ionic, and Corinthian—originated in Greece. To these the Romans added, in practice if not in name, the Tuscan, which they made simpler than Doric, and the
Ancient Greek art the west coast of Turkey) and some of the Aegean islands, probably beginning in the 6th century. The Doric style was more formal and austere, the Ionic more relaxed and decorative. The more ornate Corinthian order was a later development of the Ionic, initially apparently only used inside buildings, and using Ionic forms for everything except the capitals. The famous and well-preserved Choragic Monument of Lysicrates near the Athens Acropolis (335/334) is the first known use of the Corinthian order on the exterior of a building. Most of the best known surviving Greek buildings, such as the Parthenon and the