Villa d'Este

A Renaissance garden that runs on water. In the 16th century Cardinal Ippolito d'Este, denied the papacy, consoled himself by building the most spectacular villa garden in Europe on a steep slope at Tivoli, and diverting a river to feed it. Hundreds of fountains descend the hillside, all driven by gravity alone, no pumps: an avenue of a hundred spouts, a water organ that plays music by air pressure, jets that once startled guests. It set the pattern for garden design from Versailles onward. Four centuries on, the water still flows without a machine.

Description via source. Coordinates and heritage data from the Atika atlas.