Chand Baori, in the village of Abhaneri near Bandikui, Rajasthan is one of the deepest and largest stepwells in India (Source)
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Candi Tikus, a 14th-century bathing place and step well in Majapahit empire capital city, Trowulan Archaeological Park, East Java, Indonesia (Source)
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Stepwell at Rohtas Fort, near Jhelum. Constructed by Emperor Sher Shah Suri: carving into the limestone bedrock in the 16th century, approx. 100 feet deep, originally would have been twice as much but has covered by silt. It was in use until 2019. (Source)