
Observatory & monument
Jantar Mantar, Jaipur
Jaipur, India
Sawai Jai Singh II's masonry observatory, including the Samrat Yantra, a giant equinoctial sundial.
Built by Jai Singh II as the largest of his five observatories, it is a UNESCO World Heritage Site (2010).
- Type
- Observatory & monument
- Location
- Jaipur, India
- Founded
- 1728–1734
- Specialities
- Monumental sundials · Naked-eye astronomy
- Official website
- whc.unesco.org/en/list/1338
Opening hours, admission and accessibility change; please check the official website before visiting.



