The Mishra Mantra (Composite Instrument) in the Delhi Observatory
Among the Indian astronomical instruments, this is the most stupendous
and fascinating one, looking like a modern expressionist architectural work.
Though it is said to have compounded four kinds of instruments,
another opinion is that it could not function as any one of them.


Plan of the Mishra Mantra (Composite Instrument) in the Delhi Observatory
(From "Cosmic Architecture in India" by Andreas Volwahsen, 2001, Prestel)