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Why was Naqsh-e Jahan Square designated a UNESCO World Heritage site?

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Isfahan, Iran: Masjed-e Emām (“Imam Mosque”) — Isfahan Masjed-e Emām (“Imam Mosque”), Isfahan, Iran.

Naqsh-e Jahan Square, also known as Maydān-e Emām or Maydān-e Shāh, was designated a UNESCO World Heritage site in 1979 because it serves as a vital architectural center within the Islamic world.1

Constructed by the Safavid ruler Abbas I in the early 17th century, the square represents a pinnacle of Persian urban planning and architectural achievement. It is surrounded by significant historical structures, including:12

Masjed-e Emām: A mosque renowned for its brilliant enameled tile work.2
Masjed-e Shaykh Luṭf Allāh: Historically used for the shah’s private devotions.2
‘Ālī Qāpū: An arched palace building featuring a covered balcony that overlooked the square, used for viewing polo games and public events.2
Qayṣariyyeh: A royal bazaar gateway located at the northern end of the courtyard.2

These structures are connected by uniform two-story buildings with arched recesses, creating a cohesive and grand architectural ensemble that reflects the splendor of Isfahan during its golden age.2