The garden's highest jet, reaching some forty metres.
CC BY-SA 3.0 · Américo Toledano — CC BY-SA 4.0 · Draceane — CC BY-SA 4.0 · Draceane — CC BY-SA 4.0
**A royal summer palace with French gardens whose fountains have run on gravity alone for three hundred years** — 11 km from Segovia at the foot of the Guadarrama mountains. **Philip V** — the first Bourbon king of Spain — built it in the 18th century, ⚠ **French-born and a grandson of Louis XIV** — **so he wanted a Versailles of his own**. ✅ **The gardens are the object**: **twenty-six great fountains** with gilded lead sculpture of mythological scenes, **set through clipped French gardens** among the woods. ⚠ **The fountains run on gravity alone** — **no pumps and no electricity**: **a reservoir high on the mountain feeds them by natural pressure**, **and some jets reach forty metres**. ⚠ **They do not run every day**: **they are switched on only on set days** — **check before going**.
The garden's highest jet, reaching some forty metres.
Clipped walks and symmetrical axes among the woods.
Royal rooms with 18th-century furniture and tapestry.
Plaza de Espana 15, 40100 San Ildefonso, Segovia, Spain
**By the pressure of a water column alone — a simple principle executed brilliantly in the 18th century, and still working.** ✅ **The physics**: **water in a closed pipe rises to the level of its source** (communicating vessels). ⚠ **So if the reservoir is forty metres above the fountain, the water leaving the nozzle can in principle rise forty metres** — **with no added energy**; **gravity is the pump**. ✅ **The execution here**: **a reservoir (the *Mar*) was built high on the flank of Peñalara above the gardens**, **filled by snowmelt and streams**; **and a network of pipes descends from it** to the fountains. ✅ **The greater the height difference the greater the pressure** — **which is why the fountains lower in the gardens are the strongest**. ⚠ **The decisive constraint**: **the water is finite** — **the reservoir empties**; ⚠ **which is why the fountains do not run every day, nor all together**: **one full display consumes an enormous quantity**, **and days are needed to refill**. ✅ **That explains the schedule**: **not administrative meanness but a hydraulic limit** inherited from the original design. ⚠ **The same constraint governed Versailles**, where the fountains ran fully only as the king passed.
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