Albergo Le Terme

Albergo Le Terme sits inside a 15th-century palazzo in Bagno Vignoni, said to have been designed by Rossellino and once used as a summer residence by Pope Pius II Piccolomini. The building faces directly onto Piazza delle Sorgenti, the Etruscan-era thermal basin from which 49°C spring water still rises, and the hotel's pools draw on that same source.

The wellness side of the property includes a thermal pool, outdoor baths, a sauna, a relaxation lounge and a garden for unwinding between soaks. There's also a restaurant on site, and the hotel has been run by the Banchetti family for four generations, which gives the place a long-standing, personal feel rather than a corporate resort atmosphere.

Day passes are available, so a visit doesn't require booking a room, though the property also takes overnight guests. Staff work in Italian, English and German. Pricing sits in the upscale tier, in keeping with the historic setting and the thermal pool access, though exact day-pass rates aren't listed here.

Published opening hours are incomplete beyond Sunday, so anyone planning a trip should call ahead or check the website to confirm current days and times before showing up, especially outside peak season.