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  1. Qanat
  2. Qanat of Iran 01
  3. Qanat of Iran 02
  4. Qanat of Iran 03
  5. Qanat
  6. Yazd Zarch: Longest Qanat
  7. Esfehan Ardestan: surprising Qanat
  8. UNESCO registers Iranian qanats on World Cultural Heritage List
  9. (World Heritage) Iran's underground water system