The Romans were the first bunch who came to Baden ('baths' in German) for its 18 mineral-rich thermal springs bubbling from beneath the earth at a scalding 47°C (116°F). They called the place Aquæ Helveticæ. But if this conjures up images of Japanese-style rotemburo (outdoor onsen baths) dotted about the place, think again. By and large, Baden's springs have been channelled into a number of expensive- to over-priced thermal-spa hotels that pamper the wealthy and soothe the infirm.
Baden's pièce de résistance is a sprawling public bath facility undergoing an impressive transformation (http://projekt.thermalbaden.ch). At the time of writing the reopening date had been pushed back from 2017 to 2019.
Until it opens, the pretty town, with some excellent museums, makes for a nice excursion from nearby Zürich, but connoisseurs of luxury hotels or lovers of natural thermal pools might find better bang for their buck elsewhere.