Persepolis
Darius I built the greatest palace at Persepolis on the western side of platform. This palace was called the "Apadana". The King of Kings used it for official audiences. The work began in 518 BC, and his son, Xerxes I, completed it 30 years later. The palace had a grand hall in the shape of a square, each side long with seventy-two columns, thirteen of which still stand on the enormous platform. Each column is high with a square Taurus (bull) and plinth. The columns carried the weight of the vast and heavy ceiling. The tops of the columns were made from animal sculptures such as two-headed lions, eagles, human beings and cows (cows were symbols of fertility and abundance in ancient Iran). The columns were joined to each other with the help of oak and cedar beams, which were brought from Lebanon. The walls were covered with a layer of mud and stucco to a depth of 5 cm, which was used for bonding, and then covered with the greenish stucco which is found throughout the palaces.
Pallantium (Arcadia)
Pallantium took part in the foundation of Megalopolis, 371 BCE; but it continued to exist as an independent state, since we find the Pallantieis mentioned along with the Tegeatae, Megalopolitae and Aseatae, as joining Epaminondas before the Battle of Mantineia in 362 BCE. Pallantium subsequently sank into a mere village, but was restored and enlarged by the emperor Antoninus Pius, who conferred upon it freedom from taxation and other privileges, on account of its reputed connection with Rome. The town was visited by Pausanias, who found here a shrine containing statues of Pallas and Evander, a temple of Core (Persephone), a statue of Polybius; and on the hill above the town, which was anciently used as an acropolis, a temple of the pure (καθαροί) gods.