Jantar Mantar

An observatory constructed in mid way between the years 1728 and 1734, Jantar Mantar is placed adjacent to the city palace. Literally this term means instruments and formula. Maharaja Jai Singh II was the progressive spirit behind this observatory, which has the accolade of being the largest stone observatory in the world. Historians are of the opinion that, Maharaja Jai Singh took long seven years to complete the construction of this observatory.

Renowned for the solid geometrical statuette, this observatory house fourteen major solid and fixed geometric instruments, which are used for tracing the stars and their orbits. Besides this, Jantar Mantar observatory helps to determine the time of eclipses, find out the altitudes along with computing time. A well-preserved monument, Jantar Mantar has been declared as a national monument in the year 1948.