Hauz Khas, Delhi derives its name from the artificial lake, created in the fourteenth century to provide water to the residents of the Siri Fort city. The Hauz Khas Complex on the eastern and southern banks of the lake has Firuz Shah Tughlaq’s tomb, tombs of Tughlaq era, madrasa, assembly hall and mosque.
Man Sagar Lake is an artificial lake, about 400 years old, in the city of Jaipur. It was built as a dam to store water for the city's population. Jal Mahal is the Water Palace, situated in the middle of the lake. Jal Mahal was built by Maharaja Sawai Pratap Singh, the ruler of Jaipur during 1778-1803.