The archaeological site of Takht-e Soleyman, in north-western Iran, is situated in a valley set in a volcanic mountain region. The site includes the principal Zoroastrian sanctuary partly rebuilt in the Ilkhanid (Mongol) period (13th century) as well as a temple of the Sasanian period (6th and 7th centuries) dedicated to Anahita. The site has important symbolic significance. The designs of the fire temple, the palace and the general layout have strongly influenced the development of Islamic architecture. Takht-e Soleymān , also known as Azar Goshnasp,literally “the Fire of the Warrior Kings”.It lies midway between Urmia and Hamadan, very near the present-day town of Takab, and 400 km (250 mi) west of Tehran.
This temple housed one of the three “Great Fires” or “Royal Fires” that Sassanid rulers humbled themselves before in order to ascend the throne.The site has strong symbolic and spiritual significance related to fire and water – the principal reason for its occupation from ancient times – and stands as an exceptional testimony of the continuation of a cult related to fire and water over a period of some 2,500 years.
An artesian lake and a volcano are essential elements of Takht-e Soleyman. At the site’s heart is a fortified oval platform rising about 60 metres above the surrounding plain and measuring about 350 m by 550 m. On this platform are an artesian lake, a Zoroastrian fire temple, a temple dedicated to Anahita (the divinity of the waters), and a Sasanian royal sanctuary. This site was destroyed at the end of the Sasanian era, but was revived and partly rebuilt in the 13th century. About three kilometres west is an ancient volcano, Zendan-e Soleyman, which rises about 100 m above its surroundings. At its summit are the remains of shrines and temples dating from the first millennium BC.
Takht-e Soleyman was the principal sanctuary and foremost site of Zoroastrianism, the Sasanian state religion. This early monotheistic faith has had an important influence on Islam and Christianity; likewise, the designs of the fire temple and the royal palace, and the site’s general layout, had a strong influence on the development of religious architecture in the Islamic period, and became a major architectural reference for other cultures in both the East and the West. The site also has many important symbolic relationships, being associated with beliefs much older than Zoroastrianism as well as with significant biblical figures and legends. Takht-e Soleyman was inscribed on the world heritage list of UNESCO in 2003.