Phaistos. Crete. Greece. View inside one of the storerooms of the west wing ground floor. There are 10 rooms in total, and they were used to store grain, oil, wine, and olives in vast storage jars or pithoi. The Minoan palatial city of Phaistos or Phaestos was the second most important Minoan palatial city in Crete after Knossos and is situated in central southern Crete in the Iraklio prefecture. Crete is Greece’s largest island and the fifth largest island in the Mediterranean.