The wife of King Bhimadeva I, Udayamati, is said to have been responsible for building something, which the Archaeological Survey of India describes on its website as "the highest watermark of Solanki architecture." You could also say it makes one go "wow".
What?
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"Rani-ki-Vav", a step-well in Gujarat that was included in UNESCO's list of World Heritage Sites in June 2014.
More here.