The ninety-two metopes were carved in high relief, a practice employed until then only in treasuries (buildings used to keep votive gifts to the gods). According to the building records, the metope sculptures date to the years 446-440 BC. Their design is attributed to the sculptor Kalamis. The metopes of the east side of the Parthenon, above the main entrance, depict the Gigantomachy (mythical battles between the Olympian gods and the Giants). The metopes of the west end show Amazonomachy (mythical battle of the Athenians against the Amazons). The metopes of the south side—with the exception of the somewhat problematic metopes 13–20, now lost—show the Thessalian Centauromachy (battle of the Lapiths aided by Theseus against the half-man, half-horse Centaurs). On the north side of the Parthenon the metopes are poorly preserved, but the subject seems to be the sack of Troy.
The metopes present surviving traces of the Severe Style in the anatomy of the figures' heads, in the limitation of the corporal movements to the contours and not to the muscles, and in the presence of pronounced veins in the figures of the Centauromachy. Several of the metopes still remain on the building, but with the exception of those on the northern side, they are severely damaged. Some of them are located at the Acropolis Museum, others are in the British Museum and one can be seen at the Louvre museum.