Have you visited the Philidelphia Museum of Art? The building of the museum was constructed on a rocky hill topped by the city's main reservoir (part of the Fairmount Water Works built in late 1812 and operated until 1907). This 16-minute film explores the history of the Fairmount Water Works from the early 17th century to it's opening in 2003 as an education center (Credit: Philadelphia Water)
Cutaway showing water wheel. Cutaway showing Jonval turbine