Jantar Mantar

The Jantar Mantar is an Indian astronomy observatory in New Delhi. It was erected in the 18th century by Maharaja Sawai Jai Singh II of Jaipur and is one of five astronomical observatories he built throughout India. The largest of the five observatories, the Jantar Mantar in New Delhi, is a UNESCO World Heritage Site.

The observatory is well-known for its one-of-a-kind architectural architecture as well as its array of astronomy instruments. The stone and metal devices were used to observe the movements of stars, planets, and other celestial bodies. The observatory has equipment such as the Samrat Yantra, Jayaprakash Yantra, Misra Yantra, and Ram Yantra, which were utilised for astronomical observations and computations.