jaipur, rajasthan, india. jantar mantar in jaipur. vrihat samrat yantra also known great king of instruments in sunset

jaipur rajasthan india sunset scientific famous measure sun complex evening landmark unesco medieval space country mantar observation sstkindianculture life celestial system history sightseeing samrat earth astronomy diversity cosmological nobody calculation engineering indian monument instrument measurement maths hinduism calculating yantra sundial tower heritage culture site astronomic jantar cultural astronomical across science discovery light walk hindu sunlight observatory historical scenery vrihat center