Zahhak Castle

See:

1. Ancient castles and fortresses in Iran: Zahhak Castle, https://www.tehrantimes.com/news/447988/Ancient-castles-and-fortresses-in-Iran-Zahhak-Castle
2. https://irangazetteer.humspace.ucla.edu/catalogue/qaleh-zohak-%d9%82%d9%84%d8%b9%d9%87-%d8%b2%d9%87%d8%a7%da%a9/ 
3. Derakhshi, H. and F. Khademi, “The Chronological Occupation of Zahak Castle on the Basis of Three Seasons of Archaeological Excavations (2000-2002),” Bulletin of Parthian and Mixed Oriental Studies, vol. 1, 2005 (2006), pp. 31-42.