Jantar Mantar situated at the Parliament Street in New Delhi is the best example of the astronomical genius of the ancient Indians. Built in 1710 AD by Maharaja Sawai of Jaipur this national monument has attracted tourists, architects and scientists alike. The fourteen astronomical geometric devices can be successfully employed in measuring time and also forecasting weather conditions. The special attraction is the 90 feet high Samrat Jantar whose shadow can give the exact time. Build of marble and stone the various stone devices can also help in knowing planet behavior and has been a wonder for thousands who have visited it.
