India is often referred to as the land of historical monuments, ... Rajasthan, the Jantar Mantar is an astronomical observatory constructed in 1720 by Maharaja Jai Singh II.

10 Monuments in Jaipur Worth a Historical Walk. Built from red and pink sandstone, the Hawa Mahal is a palace in the city of Jaipur. ... The Jaipur Jantar Mantar is a UNESCO World Heritage Site.

Jantar Mantar Constructed by Maharaja Jai Singh in 1724, the Jantar Mantar is an observatory that helped predict time and other astronomy-related events. Even today, it is a popular tourist ...

New Delhi: Two instruments at the 18th century astronomical laboratory of Jantar Mantar are being resurrected. The Archaeological Survey of India (ASI) has commenced the conservation, preservation ...