As you walk beyond the Propylaia into the Acropolis site, along the Panathenaic Way, you will see to your left the foundations of pedestals for the statues that once lined the path, including one that held Pheidias' 9m-high statue of Athena Promachos (promachos means 'leading warrior'). Symbolising Athenian invincibility against the Persians, the helmeted goddess held a shield in her left hand and a spear in her right.
The statue was carted off to Constantinople by Emperor Theodosius in AD 426. By 1204 it had lost its spear, so the hand appeared to be gesturing. This led the inhabitants to believe that the statue had beckoned the Crusaders to the city, so they smashed it to pieces.