Varanasi Observatory (Jantar Mantar) looking back from the riverside
At the center is Chakra Yantra (Circular Instrument) in a vertical state,
on the left is Lâghu Samrat Yantra (Small Equatorial Sun-Dial),
behind it is Nari Valaya Yantra (Northern Hemispherical Sun-Dial), and on
its right background is large circular Digamsha Yantra (Azimuth Instrument).