The Bottini of Siena are a unique hydraulic system in the world, built between the 13th and 15th centuries for the water supply of the city. These underground galleries, extending for about 25 km, are mostly carved into the rock, and the walls are covered with calcium deposits, stalactites, and stalagmites. Situated on a hill and far from rivers, Siena had to resort to this ingenious solution to ensure water supply.

The first excavation works date back to 394, but the current extension of the underground network dates back to 1466. These galleries, called "bottini" for their barrel shape, collect rainwater infiltrations from the surrounding hills and carry them to the springs in the city. The bottini are still in operation and supply the fountains, while water for the buildings is brought by a modern aqueduct.

Inside the bottini, terracotta statuettes of the Madonna walled into the walls and numerous engraved crosses can be found, as protection against the dangers of darkness. They are also tied to various legends, such as that of the underground river Diana and the apparitions of underground creatures called "omiccioli" and "fuggisoli." Today, some sections of this extraordinary underground world are visitable, offering a unique experience that takes you back in history and allows you to understand much about the city.
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Bottini of Siena

An Underground Treasure
Call
+39 0577 292614
mail
ticket@comune.siena.it
route
Il Campo, 1, Siena

Bottini of Siena

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