Adur Burzen-Mihr (Middle Iranian) or Azar Barzin (Persian: آذر برزین) was an Atash Behram (a Zoroastrian fire temple of the highest grade) located in Parthia.
[1] Its establishment can be dated to the late 5th or early 4th century BC.
[4] The Fire is mentioned several times in Shahnameh as Mehr-Barzīn (مهر برزین), Mehr (مهر), and Barzīn (برزین), and is used also as a simile for fiery fierceness.
The Fire is thought to have been a major center of pilgrimage, even after the Arsacids' fall.
In the Sasanian period, although its name was always placed third in texts and the fire was associated with the lowliest class of the society, (farmers; the other two being warriors and priests), it still maintained its importance.