At a distance of 500 m from Sri Kashi Vishwanath Temple and 4 km from Varanasi Junction, Jantar Mantar is an observatory located atop Man Mahal Palace near the famous Dashashwamedh ghat in Varanasi of Uttar Pradesh. It is one of the popular Varanasi Tourist Places. Jantar Mantar changed into built in 1737 CE via Jai Singh, the Maharaja of Jaipur. He turned into a wonderful admirer of technology and technology and he changed into specially passionate about astronomy. Also called Yantra Mandir, it become constructed as a way to examine the exact time and altitude of the location, the declination of Sun, stars and planets and to decide eclipses.
It become the reproduction of other observatories in New Delhi, Jaipur, Ujjain, and Mathura. Housing several masonry instruments to record the movement, speed and properties of stars, planets, and examine astronomy, the building shows correct results till now. The web page is renowned for its more than one systems in various shapes that have their specialised characteristic for astronomical measurements. Disha Yantra, Dhruva Yantra, Digansha Yantra, Krantivritta Yantra, Prakash Yantra, Ram Yantra and Samrat Yantra, being the prominent Yantras are nonetheless used for numerous calculations. These structures attract many astronomers, scholars, engineers, architects and scientists at the side of visitors for its ideal aggregate of geometric bureaucracy.