MAPPING THE HEAVENS

One of the most compelling sights in Jaipur, India is the Jantar Mantar, a Unesco world heritage site. Completed in 1734 by prince Jai Singh II, the founder of the city, it is an astrological observatory. The structures, like the one pictured, are used as instruments to map the heavens, and the world's largest sundial is part of the complex. Photo by Dave.

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