The Greek Temple: Orders, Plan, Refinement

The three orders are recipes for the column and everything it carries. Doric is plainest: no base, a plain cushion capital, and a frieze alternating triglyphs with metopes. Ionic adds a base, a capital with two scroll-like volutes, and a continuous sculpted frieze instead of triglyphs. Corinthian keeps Ionic's base but swaps the capital for a bell of carved acanthus leaves, the most ornate of the three. Each order fixes proportions from the stylobate up through column, capital, and entablature, so a temple reads as one coherent system rather than stacked parts.

The plan organizes the building around a rectangular core. The cella (or naos) holds the cult statue, entered through a porch called the pronaos, sometimes with a back porch called the opisthodomos. A peristyle, a single row of columns, wraps the whole structure. The Parthenon runs eight columns across the front and seventeen along the side, a ratio close to 4:9 that the Greeks also used to relate a temple's width to its length and to set smaller proportions within the plan, so the whole building scales consistently.

None of this is rigidly straight by accident of eye. Architects curved the stylobate slightly upward at the center, since a long perfectly flat platform looks like it sags in the middle; the curve corrects that illusion so the base reads as level and taut. Entasis does the same job for columns, swelling the shaft slightly so it doesn't look concave. These refinements connect directly to the broader unit idea that ancient architecture uses geometry deliberately, correcting the eye rather than simply obeying a ruler, much as Egyptian grids and Roman arches solve their own structural and visual problems.