Worlds largest Sun Clock Jantar Mantar Jaipur, India in 4k ultra HD

The Jantar Mantar is a collection of nineteen architectural astronomical instruments built by the Rajput king Sawai Jai Singh I, the founder of Jaipur, Rajasthan. The monument was completed in 1734. It features the world s largest stone sundial, and is a UNESCO World Heritage site. It is located near City Palace and Hawa Mahal. The instruments allow the observation of astronomical positions with the naked eye. The observatory is an example of the Ptolemaic positional astronomy which was shared by many civilizations. Source from : wikipedia