| − | A '''spa''' is a health resort which uses the waters of mineral springs for therapeutic purposes. The term derives from the town of Spa in [[Belgium]]. Spas have been known since ancient times — the city of [[Bath]] in western England was once a [[Roman]] spa named ''Aquae Sulis'' — but they reached their peak of popularity in the later nineteenth century. Major spa towns existed across Europe and North America. | + | ''For the [[Belgian]] [[city]], please see [[Spa (city)]].'' |