Column cylindrical disks of alternating diameter. The shaft is almost never fluted. The proportions vary, but are generally similar to Doric columns. Height to width ratio is about 7:1. The Ionic column is considerably more complex than the Doric or Tuscan. It usually has a base and the shaft is often fluted (it has grooves carved up its length). The capital features a volute, an ornament shaped like a scroll, at the four corners. The height-to-thickness ratio is around 9:1. Due to the more refined proportions and scroll capitals, the Ionic column is sometimes associated with academic buildings. Ionic style columns
Ancient Greek temple a thin "abacus". The eponymous Corinthian capital of the Corinthian order is crowned by rings of stylised acanthus leaves, forming tendrils and volutes that reach to the corners of the "abacus". The capitals support the entablature. In the Doric order, the entablature always consists of two parts, the architrave and the Doric frieze (or triglyph frieze). The Ionic order of Athens and the Cyclades also used a frieze above an architrave, whereas the frieze remained unknown in the Ionic architecture of Asia Minor until the 4th century BC. There, the architrave was directly followed by the "dentil". The frieze was