Bagno Vignoni, Medieval thermal village in Val d'Orcia, Italy
Bagno Vignoni is a hamlet of San Quirico d'Orcia in Tuscany, known for its natural thermal springs of volcanic origin. The rectangular stone pool in the center measures roughly 160 by 95 feet (49 by 29 meters) and is continuously fed by hot water rising from below at around 122 degrees Fahrenheit (50 degrees Celsius).
The settlement developed in the Middle Ages as a rest stop along the Via Francigena, where pilgrims and merchants paused their journey between Rome and northern Europe. In the 14th century, Catherine of Siena visited the site and used the healing waters, solidifying its reputation as a spa destination.
The name recalls the historic bathhouse of the Vignoni family, who operated thermal facilities here for centuries. Today locals and visitors gather around the steaming pool that defines the village square, especially impressive during cool weather.
The village is small and walkable in half a day, with flat footwear recommended due to cobblestone paths. The open layout allows free viewing of the thermal pool, while surrounding lanes invite walks through the historic layout.
Below the main square, a path leads to the Parco dei Mulini, where remains of old water mills are visible, which used the hot thermal water for centuries to grind grain. The mills operated even in winter, as the constant water temperature prevented freezing.
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