Corinthian order with a continuous design or left plain, as at the U.S. Capitol extension ("illustration, right"). At the Capitol the proportions of architrave to frieze are exactly 1:1. Above that, the profiles of the cornice moldings are like those of the Ionic order. If the cornice is very deep, it may be supported by brackets or modillions, which are ornamental brackets used in a series under a cornice. The Corinthian column is almost always fluted, and the flutes of a Corinthian column may be enriched. They may be filleted, with rods nestled within the hollow flutes, or stop-fluted, with the rods
Tuscan order its overall proportions, intercolumniation and simpler entablature, it follows the ratios of the Ionic. This strong order was considered most appropriate in military architecture and in docks and warehouses when they were dignified by architectural treatment. Serlio found it "suitable to fortified places, such as city gates, fortresses, castles, treasuries, or where artillery and ammunition are kept, prisons, seaports and other similar structures used in war." Not all modern writers accept the Tuscan order, and it is sometimes called "Doric" even by those aware of the distinction. From the perspective of these writers, the Tuscan order was an older primitive