Outside of Shiraz, Cyrus ordered construction undertaken at a valley site known to the Greeks as Pasargadae, where palaces, audience halls, and a towerlike structure with the folk name of Solomon's Prison were built. Pasargadae is the first capital of Achaemenian empire. Hamadan served as a summer capital. Under Cyrus the Great, 599-530 BC, a Persian who founded the Achaemenid empire and ruled it from 549 to 530 BC. He formed a lasting union of the Persians and the Medes. The entire plateau fell under the sway of the Achaemenid Empire (c.550 BC-330 BC), which eventually stretched from the Mediterranean to India and into Africa. After Cyrus's death (529 BC), his body was placed within a limestone mausoleum built in imitation of a gabled wood house and set on a plinth composed of six very high steps. The Tomb of Cyrus, the impressive stone which was originally much taller but is still the best preserved of the remains of Pasargadae.
At Pasargadae you will also see the remains of three Achaemenian Palaces, known as Throne of the Mother of Solomon, Prison of Solomon and two stone plinths within a sacred area. Persepolis (or Takht-e Jamshid) became the next palace constructed by Cyrus's successor Darius I.
It use to be a Zoroastrian fire temple from Achaemenian Period exists but scholars are uncertain about it's use.