OlympeionThe Olympieion (or Olympeion) in Athens was the largest temple in Greece, and was dedicated to the god Zeus. Some work was began in 515 BC by Pisistratus, but it was not completed until AD 124-132 by Hadrian.
It was approximately 96 by 40 metres in size. The building was surrounded by 104 Corinthian columns, each 17 meters high, made of marble. Only 15 of the Corinthian columns remain standing today.