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Jantar Mantar - Jaipur, Jaipur
(4.1/5 based on 4,400+ reviews on the web)
A site dedicated to the study of astronomy, Jantar Mantar - Jaipur holds a place on the World Heritage List and plays home to a number of observational instruments. Visit the site, considered the finest of the nation's historic observatory facilities, and wander among 20 different astronomical structures, including a giant sundial topped with an observation deck. You'll find that these monuments, spread out across the complex's grassy grounds, allow for astronomical observation with the naked eye rather than a telescope. Consider visiting with a local guide to find out more about each instrument. To visit Jantar Mantar - Jaipur and get the most from your holiday in Jaipur, create itinerary details personal to you using our Jaipur itinerary maker.
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Reviews
TripAdvisor
  • Quiet and nice place. Difficult to understand how the different instruments work thought that we had a guide. There was very little to read.
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  • Amazing structures from 1700s.well presented and functional today. Must go during day, sunny day best so beware of heat. Not as good on cloudy day because cannot see accuracy. 
  • A human guide or paper is essential for making this visit, otherwise some instruments will remain puzzles for you! the site, which is quite small, deserves your attention because the richness of these instruments learn us a lot about Indian astronomy.
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Google
  • A whole lot of scientific instruments useful for determining horoscope and astronomy. It was really shocking to see the scientific developments of the 18th century and how far we have reached now. I recommend you to hire a guard since it wasn't easy to understand how the instruments work. You can get a audio guide too.
  • Good place to learn about the intelligence of astronomers of olden times. How accurately they calculated time, latitude, azimuth, position of planets, etc. Entry ticket of Rs 50 is too high looking at the huge crowd that contributes very large amount to govt kitty. The place remains open from 9:30 am till 5 pm. The canteen sells very tasty aloo puff for Rs 20. There is filtered cold water available for free.
  • What a creative place it is... Do remember to take a Guide to Understand the Astrology , Science etc! Astronomical instruments are just wow. Its worth hiring a guide who can tell you history and science behind these instrument or it will be a waste visit. Its gets too hot in Jaipur during day - wear goggle, cap and carry a water bottle. Entry charge Rs.50
  • Don't go without Guid becz nothing for enjoying only old type sun moon time machines. But go with guid for better experience
  • There are five Jantar Mantar monuments in India, of which the largest is in Jaipur which features many instruments along with the world's largest stone sundial. The Vrihat Samrat yantra is a sundial that can give the local time to an accuracy of 2 seconds. In the early 18th century, Maharaja Jai Singh II of Jaipur constructed five Jantar Mantars in total, in New Delhi, Jaipur, Ujjain, Mathura and Varanasi; they were completed between 1724 and 1735. The jantars have evocative names like Samrat Yantra, Jai Prakash, Ram Yantra and Niyati Chakra; each of which are used to for various astronomical calculations. The primary purpose of the observatory was to compile astronomical tables, and to predict the times and movements of the sun, moon and planets.