Jantar Mantar

Jantar Mantar is located in New Delhi, India's contemporary capital. The term "Jantar Mantar" translates as "instruments for measuring the harmony of the heavens." It is made up of 13 architectural astronomical devices. From 1723 onwards, Maharaja Jai Singh II of Jaipur established five sites to revise the calendar and astronomical tables. Jai Singh, born in 1688 into a royal Rajput family that ruled the area realm, grew up in an era of education that emphasized astronomy. There is a plaque on one of the structures of New Delhi's Jantar Mantar observatory that was installed in 1910 and incorrectly dates the complex's construction to 1710. Later research, though, suggests 1724 as the actual year of construction. Its height is 723 feet (220 m).