The history of Siena, city of hill far from rivers and lakes, has been marked by the need to carry water to the population and to all economic activities. The numerous fountains, some of which are monumental, are therefore the symbols of a won battle, thanks to an ingenious underground aqueduct - called the Bottini - with over 25 km of tunnels that go from the fountains to the individual homes.

One must not be surprised then if Siena has dedicated to water a museum that reconstructs this story, also with the help of multimedia devices, and if a significant part of the Bottini was made accessible to visitors, albeit in ways that ensure their maximum protection and integrity.