Gallo-Roman Baths of Tours
The Gallo-Roman baths of Tours were public bathhouses that, during the High Empire and for some until the end of the Roman Empire—none of them "survived" beyond that—were in operation in the ancient city of Caesarodunum, which would later become Tours. While these baths had long been widely accepted, their exact location began to be more clearly established in the 1980s.
Source: Wikipedia — Gallo-Roman Baths of Tours (CC BY-SA 4.0)