State Focus 14 of 14
State Focus Rajasthan Heritage Art, Culture & History Science & Technology

Jantar Mantar in Jaipur, the best preserved of India's historic observatories

Jantar Mantar in Jaipur was inscribed on the UNESCO World Heritage List in 2010 under criteria (iii) and (iv). It was built in the early 18th century by Prince Jai Singh II. It has about 20 main fixed instruments designed for observing astronomical positions with the naked eye. UNESCO calls it the most significant, most comprehensive and best preserved of India's historic observatories. The property covers 1.8652 hectares with a buffer zone of 14.6664 hectares.

Inscribed: 2010 Builder: Prince Jai Singh II Main fixed instruments: About 20 Criteria: (iii), (iv)
Why it matters for exams: Builders, dates and inscription years of Indian World Heritage monuments are standard art-and-culture questions.
UPSCSSC
30 September 2026 Source: UNESCO World Heritage Centre

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