Parthenon Column Count: 8 by 17 Peristyle with Interior Colonnades

The Parthenon (Athens, 447–432 BCE) is a Doric peripteral temple with:

Exterior Colonnade

• Width (short side): 8 columns
• Length (long side): 17 columns
• Total peripheral columns: 46 (8×2 + 17×2 − 4 corners counted twice)

Interior

• Cella (naos): Two-tiered colonnade of 23 fluted Doric columns (originally) supporting the roof.
• Opisthodomos (rear porch): 4 columns in antis.
• Pronaos (front porch): 6 columns in antis.

The 8×17 ratio (≈1:2.125) exemplifies Classical Greek proportional harmony.