Light masonry instrument at Jantar Mantar in Jaipur, framed by an arch with blue sky behind.

Jantar Mantar

An open-air observatory where masonry shapes measure the sky and time; having the instruments explained changes the visit completely.

  • Science and architecture
  • Suggested time:1 to 1 h 30
  • Area:Walled city, next to the City Palace

About Jantar Mantar

Triangles, arches and curved surfaces fill Jantar Mantar on a scale that seems excessive until someone explains what it's for. These are fixed instruments for astronomical observation, built to track the positions of the stars with the naked eye. Here, the wall isn't just casting a shadow.

Hire someone to explain how each shape was used. Without context, you photograph geometry; with it, you start to read the space. Bring sun protection and stay in the permitted areas around the instruments.

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