Jantar Mantar (Jaipur)

Jantar Mantar in Jaipur is an astronomical observatory built in the 18th century, featuring a collection of large, intricate masonry instruments designed to measure celestial positions and track astronomical events. It was created by Maharaja Jai Singh II to improve the understanding of time, planets, and the sun's movements. The observatory includes structures like the Samrat Yantra (giant sundial) and other devices for predicting eclipses, tracking stars, and determining local time accurately. Today, it stands as a UNESCO World Heritage Site, showcasing innovative science and architectural ingenuity from India’s rich history.