Possible Clues:

• The height of classical Greek architecture?
• What the farmer gets over the soil over at hens?
• Car pool is turning out to be a high point
• Parthenon location
• Killer repulsed with refinement: not hard in citadel
• Cultivated plant in a bad soil in ancient citadel
• A farm building set up to house produce? Part of ancient society
• Upper fortified part of Greek city, as in Athens
• It's gathered storage tower reversing onto a fortification
• Bastion of 'Cool Paris' fashion