Water organ
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The water organ or hydraulic organ is a type of pipe organ blown by air, where the power source pushing the air is derived by water from a natural source or by a manual pump. Consequently, the water organ lacks a bellows, blower, or compressor.
Musicians with cornua and a water organ, detail from the Zliten mosaic, 2nd century CE
Hydraulis, 1st century BCE, Archaeological Museum of Dion, Greece
Reconstruction of hydraulic organ
Villa d'Este
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The Villa d'Este is a 16th-century villa in Tivoli, near Rome, famous for its terraced hillside Italian Renaissance garden and especially for its profusion of fountains. It is now an Italian state museum, and is listed as a UNESCO World Heritage Site.
Aerial view of Villa d'Este
Cardinal Ippolito d'Este, creator of the Villa d'Este and its gardens
The Villa and gardens in 1560–1575
Park of the Villa d'Este, Carl Blechen, 1830. The overgrown garden appealed to the Romantic imagination; today this same view is once again manicured.