The San Pellegrino Terme Thermal Baths represented one of the most prestigious symbols of the Belle Époque in the Brembana Valley. Built at the behest of the Società Anonima delle Terme to a design by engineer Mazzocchi, it was inaugurated in July 1901 in the presence of important authorities of the time.
Located along the then Viale delle Terme, now Viale Cesare Mazzoni, the complex was distinguished by its elegant Art Nouveau architecture and by its modern medical and technological equipment, considered among the most advanced in Europe. Inside, there were refined first and second class baths, departments for medical gymnastics, electrotherapy, inhalations, carbon dioxide baths, showers, and steam baths.
The Baths were not merely a place dedicated to body care, but also an important center for social and cultural life. To make guests' stays more enjoyable, entertainment events were organized with dance music, as well as coffee houses and meeting rooms intended for scientific and cultural gatherings.