https://www.youtube.com/watch?v=XXl5h257iBA

“When the Parthenon was built between 447BC and 432BC, three sets of sculptures, the metopes, the frieze and the pediments, were created to adorn it. Of these, the metopes and the frieze were part of the structure of the Parthenon itself. They were not carved first and then put in place, high up on the Parthenon, but were carved on the sides of the Parthenon itself after it had been constructed”.

“The metopes were individual sculptures in high relief. There were 92 metopes, 32 on each side and 14 at each end and each metope was separated from its neighbours by a simple archtitectural decoration called a triglyph, The metopes were placed around the building, above the outside row of columns and showed various mythical battles. The north side showed scenes from the Trojan war; the south side showed a battle between the Greeks and the Centaurs — part man, part horse; the east side showed the Olympian gods fighting giants and the west side showed a battle between Greeks and Amazons”.

http://www.parthenon.newmentor.net/pmarb.htm