A capital that does not conform to the proportions or forms of one of the classical or Renaissance orders listed below. It might include decoration that is unusual and unexpected.

A capital characterized by a simple circular molding (an echinus) topped with a square slab (an abacus).

A capital characterized by the use of volutes: scroll-like ornamental features.

A highly decorated, bell-shaped capital distinguished by two rows of carved acanthus leaves and small corner scrolls.

A highly decorated, bell-shaped capital common in the Renaissance that combines the large scroll-like volutes of the Ionic order with the leafy acanthus decorations of the Corinthian order.