Correct option is A
Ans. (a)
The Jantar Mantar in Jaipur was included in the UNESCO World Heritage List in 2010. Built by Maharaja Sawai Jai Singh II in the 18th century, Jantar Mantar is the largest stone astronomical observatory in the world. It contains 19 architectural astronomical instruments used for measuring time, tracking celestial objects, and predicting eclipses.
Information Booster
1. The Jantar Mantar is a prime example of India’s scientific advancements in ancient times.
2. Other UNESCO World Heritage Sites in Rajasthan include the Hill Forts of Rajasthan and the Keoladeo National Park.
3. The observatory remains a popular tourist attraction and is celebrated for its unique design and precision.
Additional Information
· (b) Ranthambore Fort: Part of the Hill Forts of Rajasthan, declared a UNESCO World Heritage Site in 2013.
· (c) Kumbhalgarh Fort: Also included in the Hill Forts list in 2013.
· (d) Keoladeo National Park: Declared a UNESCO site in 1985 for its rich biodiversity.