Ionic order a version of such a perfectly four-sided Ionic capital; Scamozzi's version became so much the standard, that when a Greek Ionic order was eventually reintroduced, in the later 18th century Greek Revival, it conveyed an air of archaic freshness and primitive, perhaps even republican, vitality. The Ionic column is always more slender than the Doric; therefore, it always has a base: Ionic columns are eight and nine column-diameters tall, and even more in the Antebellum colonnades of late American Greek revival plantation houses. Ionic columns are most often fluted. After a little early experimentation, the number of hollow flutes in
Classical order while the Corinthian or the Composite order was used for the top story. The Colossal order was invented by architects in the Renaissance. The Colossal order is characterized by columns that extend the height of two or more stories. The Tuscan order has a very plain design, with a plain shaft, and a simple capital, base, and frieze. It is a simplified adaptation of the Doric order by the Greeks. The Tuscan order is characterized by an unfluted shaft and a capital that only consists of an echinus and an abacus. In proportions it is similar to the Doric order,