The Parthenon itself replaced an older temple of Athena, which historians call the Pre-Parthenon or Older Parthenon, that was destroyed in the Persian invasion of 480 BC. The temple is archaeoastronomically aligned to the Hyades.[5] While a sacred building dedicated to the city’s patron goddess, the Parthenon was actually used primarily as a treasury. http://ancient-greece.org/architecture/parthenon.html With the...