Petriolo spa in Tuscany Italy
The Petriolo spa was Pope Pius II’s favourite. The river Farma marks the natural boundary between the provinces of Siena and Grosseto, but it is above all a demarcation line between two situations that are historically very different: merchant civilisation on the one hand and a woodland/mining economy on the other. It rises in the Metalliferous Hills then flows into the Merse and subsequently joins the course of the Ombrone. It runs through an intact natural environment in its journey downstream, meeting the warm waters of the historic Petriolo Spa.

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