Jantar Mantar

Observatory · Ward 138

Jantar Mantar

Observatory · Ward 138

3

Malve Nagar, J.D.A. Market, Pink City, Jaipur, Rajasthan 302002, India

Photos

Jantar Mantar by null
Jantar Mantar by jward628 (Atlas Obscura User)
Jantar Mantar by nicolab (Atlas Obscura User)
Jantar Mantar by jward628 (Atlas Obscura User)
Jantar Mantar by jward628 (Atlas Obscura User)
Jantar Mantar by ATLAS_OBSCURA
Jantar Mantar by Avinash Bhat / CC BY-SA 2.0
Jantar Mantar by null
Jantar Mantar by jward628 (Atlas Obscura User)
Jantar Mantar by ATLAS_OBSCURA
Jantar Mantar by nicolab (Atlas Obscura User)
Jantar Mantar by nicolab (Atlas Obscura User)
Jantar Mantar by certifieddoherty (Atlas Obscura User)
Jantar Mantar by jward628 (Atlas Obscura User)
Jantar Mantar by jward628 (Atlas Obscura User)
Jantar Mantar by Dan / CC BY 2.0
Jantar Mantar by Russ Bowling/CC BY 2.0 (Flickr Creative Commons)
Jantar Mantar by null
Jantar Mantar by nicolab (Atlas Obscura User)
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null
Jantar Mantar by null

Highlights

UNESCO site with 19 stone astronomical instruments, largest sundial  

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Malve Nagar, J.D.A. Market, Pink City, Jaipur, Rajasthan 302002, India Get directions

tourism.rajasthan.gov.in
@asi.goi

Information

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Malve Nagar, J.D.A. Market, Pink City, Jaipur, Rajasthan 302002, India Get directions

+91 141 515 5163
tourism.rajasthan.gov.in
@asi.goi
𝕏
@ASIGoI

Features

wheelchair accessible parking lot
wheelchair accessible entrance

Last updated

Oct 26, 2025

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@atlasobscura

12 Ancient Scientific Instruments You Can Still See Today

"In 1728, Sawai Jai Singh II, rajah of Jaipur, dispatched his emissaries across the globe to gather the most accurate astronomical data possible. When they returned, Jai Singh ordered the construction of the original Jantar Mantar complex in New Delhi, a monumental astronomical observatory constructed entirely out of stone and based on the astronomical tables of the French mathematician Phillipe de la Hire. In all Sawai Jai Singh built a total of five observatories, with the largest being this later construction of the Jantar Mantar in his hometown of Jaipur. Among the stone instruments Jai Singh constructed was the Samrat Yantra, a 73-foot-tall sundial which remains the largest ever built. Though indistinguishable in design from other sundials of the day, it was far and away the most accurate. Its two-second interval markings are more precise than even de la Hire’s table. The smaller but older (and pink) version of the Jantar Mantar can be seen in New Delhi." - ATLAS_OBSCURA

https://www.atlasobscura.com/lists/ancient-scientific-instruments-astronomy-observatories
View Postcard for Jantar Mantar - Jaipur
@afar

"Janta Mantar, a Jaipur park for the space-and-time-inclined, wasbuilt in the early 1700s by the Maharaja Singh.The UNESCO World Heritage site, located in the old city, contains20 large stone astronomical instrumentsdesigned to assist scientists who wereobserving the heavens with their bare eyes. The huge tools monitorcelestial happenings and are still in used today for agricultural predictions. One can walk between the impressive apparatuses and imagine the 18th-century scientists of the royal court plotting and charting impossible distances and paths."

The Best Things to Do in India's Golden Triangle
View Postcard for Jantar Mantar - Jaipur
@afar

"Janta Mantar, a Jaipur park for the space-and-time-inclined, wasbuilt in the early 1700s by the Maharaja Singh.The UNESCO World Heritage site, located in the old city, contains20 large stone astronomical instrumentsdesigned to assist scientists who wereobserving the heavens with their bare eyes. The huge tools monitorcelestial happenings and are still in used today for agricultural predictions. One can walk between the impressive apparatuses and imagine the 18th-century scientists of the royal court plotting and charting impossible distances and paths."

The Perfect Week in India's Golden Triangle
View Postcard for Jantar Mantar - Jaipur

Hemant Singh Thakur

Google
I recently visited Jantar Mantar in Jaipur, and it was an amazing experience. The place is full of fascinating stone instruments used for astronomical studies centuries ago. I was really impressed by how accurately they could measure time and track celestial movements without any modern technology. The architecture is unique and well-preserved, and the guide explained the purpose of each structure in detail. It felt like stepping back in time to see how advanced ancient Indian science was. Overall, it was a very educational and memorable visit.

Abhijeet Mahajan

Google
Jantar Mantar is an UNESCO World Heritage Site with an ancient astronomical observatory with significant historical and scientific importance. There are five Jantar Mantars in India, located in Jaipur, New Delhi, Ujjain, Mathura, and Varanasi, built by Maharaja Sawai Jai Singh II. Jaipur Jantar Mantar has 19 monumental instruments for precise astronomical calculations like; - Samrat Yantra (world's largest stone sundial) - Ram Yantra, Jai Prakash Yantra, Chakra Yantra, and others. Jaipur Jantar Mantar is a UNESCO World Heritage Site. It is a symbol of India's scientific heritage and astronomical expertise. It showcases ancient India's knowledge of astronomy and mathematics.

Suresh

Google
Jantar Mantar (Hindustani pronunciation: [d͡ʒən̪t̪ər mən̪t̪ər]) is an assembly of stone-built astronomical instruments, designed to be used with the naked eye. There were five Jantar Mantars in India. All were built at the command of the Rajah Jai Singh II, who had a keen interest in mathematics, architecture and astronomy. The largest example is the equinoctial sundial belonging to Jaipur's assembly of instruments, consisting of a gigantic triangular gnomon with the hypotenuse parallel to the Earth's axis. On either side of the gnomon is a quadrant of a circle, parallel to the plane of the equator. The instrument can be used with an accuracy of about 20 seconds by a skilled observer to determine the time of day, and the declination of the Sun and the other heavenly bodies. It is the world's largest stone sundial, and is known as the Samrat Yantra.[1][2] The Jaipur Jantar Mantar is a UNESCO World Heritage Site.

pallavi gayathri

Google
My visit to the Jantar Mantar observatory in Jaipur was scheduled for a public holiday, and as expected, the place was bustling with a huge number of tourists. One of the highlights of my visit was a short, ten-minute introductory video that was shown inside. It provided a concise and fascinating explanation of the history and purpose. It was a great way to understand the complex design of the instruments and the genius of Maharaja.

Shishir Sharma

Google
For an Engineer like me it was one of the best places to explore and discover ancient methods of knowledge and experience the observatory with tools dating back to 200+ years. Though I visited on a rainy day but it would really describe it's working on a Sunny day. I did not take any guide for it because I wanted to explore the tools and it's working myself and I would suggest the same if you wish to learn more about it.

Hirali Sanghani

Google
Jantar Mantar isn’t just a monument—it’s a living classroom and a sculptural wonder. Perfect for history buffs, science enthusiasts, photographers, or anyone curious about how ancient minds blended function and form. Whether you walk through it under the sun or catch the evening show, it’s a standout experience that captures the cosmic curiosity of Jaipur.

StorybyAnupama

Google
Jantar Mantar is one of the oldest astronomical observatories featuring the world’s largest stone sundial, located in the heart of Jaipur. It is no longer a working science center but is maintained as a monument, and education activity sessions, guided tours and music and light shows, are organized here. Jantar Mantar in Jaipur is one of the largest observatories in the world, comprising of remarkable stone assemblies that help to interpret the position of celestial bodies and calculate local time. Enumerated as a World Heritage Site by UNESCO, Jantar Mantar attracts tourists, historians, astronomers, architects, mathematicians, and geographers. The collection of nineteen astronomical instruments in Jantar Mantar allows the observation of astronomical positions with the naked eye. The monument is an exemplification of architectural innovations that was built on ideas from different religious and social beliefs in 18th-century India.

Ankur Mehta

Google
Very rare and beautiful heritage spot built in 1734 by maharaja jai singh. It has 19 different astronomical instruments. Designed for the observation of astronomical positions with the naked eye, they embody several architectural and instrumental innovations