Rani-ki-Vav is an 11th-century-stepwell situated in the town of Patan in Gujarat, India, on the banks of the Saraswati River. The stepwell is said to have been constructed by Udayamati, the widowed Queen of Bhimdev I (AD 1022 to 1063), around 1050 AD in memory of the king. Bhimdev I was the son of Mularaja, the founder of the Solanki dynasty of Anahilwada Patan. The stepwell was later flooded by the nearby Saraswati River and silted over until the late 1980s, when it was excavated by archaeologists. When restored, the stepwell’s magnificent carvings were found in pristine condition.
Designed as an inverted temple highlighting the sanctity of water, it is divided into seven levels of stairs with sculptural panels of high artistic quality. There are more than 500 principle sculptures and over a thousand minor ones that combine religious, mythological and secular imagery, often referencing literary works. The fourth level is the deepest and leads into a rectangular tank, 9.5 m by 9.4 m, at a depth of 23 m. The well is located at the westernmost end of the property and consists of a shaft 10 m in diameter and 30 m deep. The building itself measures 64 m by 20 m.
Below the last step of the step well, there is a gate that leads to a tunnel 30 km long that opens at the town of Sidhpur near Patan. It was built as an escape gateway that could be used by the king in the event of defeat during a war. The tunnel is now blocked by stones and mud.
Rani-ki-Vav was included in the list of UNESCO's World Heritage Site on June 22, 2014.