The Jantar Mantar is a complex of structures that consists of 13 architectural astronomy instruments. The site is one of five built by Maharaja Jai Singh II of Jaipur, from 1724 onwards, as he was given by Mughal emperor Muhammad Shah the task of revising the calendar and astronomical tables.
Jantar Mantar
LancelotLink
@ 2014-02-20 02:57:15
http://virtualglobetrotting.com/map/yantra-mandir-astronomical-observatories/view/?service=0