Chand Baori is a famous stepwell situated in the village Abhaneri near Jaipur in Indian state of Rajasthan. This step well is located opposite Harshat Mata Temple and is one of the deepest and largest step wells in India. It was built in 9th century and has 3500 narrow steps and 13 stories and is 100 feet deep. It is a fine example of the architectural excellence prevalent in the past. http://www.moolf.com/interesting/the-deepest-step-well-in-the-world.html