This majestic observatory bears witness to the thirst for scientific knowledge of the Indians. It is a very ancient observatory that was built in the seventeenth century AD. The Jantar Mantar Observatory is one of the oldest astronomical observatories in India in particular and in the world in general. The main objective of its construction was to compile astronomical tables, and predict the times and movements of the sun, moon and planets. This distinctive landmark is visited by tourists and locals alike, as they can learn about the history of astronomy in India and Asia.