Triglyphs
A version of this article appreared on the webpage of the docents of the Chicago Architecture Center. I think I had learned about the classical orders by the 8th grade, although I think I then only learned that the columns of the various orders had different capitals. Much later I learned there is much more to the classical orders than capitals. A key element of the Doric Order is the triglyph . The triglyph is a set of three vertical marks that appears on the frieze equally spaced between columns. If you look up triglyph in Wikipedia, you'll see this image: The ancient Roman architect Vitruvius speculates that triglyphs reflect the ends of wooden beams. No one knows if Vitruvius is right, but everyone (e.g., the French architectural historian and theoretician Viollet-le-Duc) repeats what he said, because it's the best we've got. I don't know much about the religious beliefs of the Dorians (no one does), but they seem to attach high importance to small decorative detail...