Three competing theories explain Derinkuyu Underground City's construction: Christian, Hittite, or Persian origins. Early Christian theory: built 1st-4th century AD as refuge from Roman persecution Hittite theory: built approximately 1600-1200 BC for strategic military infrastructure Persian theory: based on Avesta texts describing Vara (subterranean ark) built to survive climate catastrophe

🚧 Only about half of Derinkuyu is open to visitors. Many tunnels are sealed — closed long ago using different methods. So much left to explore! 👀

Key facts:

- Early Christian theory: built 4th-7th century AD as refuge from Roman persecution

- Some historians propose earlier origins, possibly Hittite-era (1600-1200 BC)

- The ancient city was known as Elengubu

- Extends 85m+ below surface with up to 18 levels

- Could shelter approximately 20,000 people

Key Facts

  • Early Christian theory: built 1st-4th century AD as refuge from Roman persecution
  • Hittite theory: built approximately 1600-1200 BC for strategic military infrastructure
  • Persian theory: based on Avesta texts describing Vara (subterranean ark) built to survive climate catastrophe
  • Zoroastrianism predates Judaism, Christianity, and Islam
  • Avesta describes god Ahura Mazda warning prophet Yimma of catastrophic winter
  • Persian scholars believe underground cities predate the Younger Dryas (approximately 10,000 BC or earlier)

Related site: Derinkuyu Underground City — view location, images, and history on the Ancient Nerds map.