The World's Largest Sundial - WorldAtlas
https://www.worldatlas.com/articles/where-is-the-jantar-mantar.html
WebJun 6, 2019 · The Jantar Mantar in Jaipur is one of the most sophisticated ancient astronomical observatories, hosting the largest sundial in the world. The observatory was probably completed around 1738. There are 20 instruments in the observatory which are built primarily of stone and marble, while mortar, bricks, and bronze tablets had also …
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