The Doric order triglyph and metope frieze may have only extended along the eastern face, as few of the elements of this survive. The metopes were about thick and slotted into the triglyph blocks rather than forming a single block with them, as is more typical. Roughly in the center of the southern side of the temple was a limekiln of about in diameter that was used to reduce the marble of the temple (and of the sanctuary generally) into lime for the construction of the Hexamilion wall across the Isthmus of Corinth in the 5th century CE. Scorch mark remain visible on the stones of the temple around a circular area where the heat of the limekiln caused the breakdown of the underlying stones.