The city owes its reputation in part to its thermal water with multiple virtues. Sedative, analgesic, balancing and relaxing, it makes Néris-les-Bains a city conducive to well-being. And for lovers of relaxation, a thermo-playful center "Les Nériades" proposing an exceptional ressourcement thanks to indoor and outdoor pools, sauna, hammam, and cabins dedicated to programs of unique treatments based on thermal water, etc. Also favorable for relaxation and walks with its 17 hectares of flowered and wooded parks, the resort offers a wide variety of landscapes to discover. In addition, a rich architectural heritage preserved allows traveling over more than 2000 years of history: Antiquity with its Gallo-Roman pools and arenas, the Middle Ages with the Church of St. George and the Merovingian necropolis, And especially the Belle Époque with the theater, the Casino, the thermal baths or the many villas, and many other discoveries...
In the Gallic period, the mysterious divinity which manifests itself through the bubbling of the spring, will take a name, that of the god Nerios, but the Romans were probably the first to exploit the thermal waters of Néris-les-Bains. From the first century onwards, the town became urbanized in the style of Rome. Baths, swimming pools, villas, aqueducts, amphitheater and temples are built: Nériomagos the merchant becomes Aquae Nerii the thermal.
In the second century, Lucius Julius Equester, a priest of Rome and Augustus, surrounded the Baths with admirable porticos dedicated to the Emperor and a second set of thermal baths. The residential districts where neighboring rich residences and simple workshops of artisans, the forum, a civil basilica, temples, are developed around the thermal valley. The theater-amphitheater whose hemicycle is leaned against a small hill still occupies the location of the park of Arena. The 8th Legion Augusta, stationed at Neris at that time, contributes greatly to the development of the city whose prosperity is brutally ruined by the great invasions.
With as much brilliance as for the other resorts of the region, the thermal renewal of Néris-les-Bains takes place in the nineteenth century. The thermal establishment, the large hotels, the Casino and the theater are built. The parks and promenades of the lime trees are drawn. Lammartine, Musset, the Empress Eugenie, among other great figures, find themselves in this place where the passions are appeased. It is also, in the fashion of the time, a period of active archaeological excavations where one discovers with wonder the rich infrastructure of the Gallo-Roman city.
In a context full of history, the Maison du Patrimoine was itself housed in a magnificently restored 15th century mansion. Other treasures of architecture are to be discovered at the bend of the streets: the amphitheater, the Roman pools, the necropolis located near the Romanesque church, the station classified Historical Monument and the splendid Napoleon III style theater.