Built on a rock, the tall houses with six or seven levels are dominated by the ruins of a Renaissance castle of which only the round and crenellated towers remain. Also worth seeing are the belfry and the watchtower, a true testament to 13th century military architecture.
The sloping streets are flanked by refreshing fountains. These small springs are a reminder that Montbrun-les-Bains is above all an important spa resort, known since Roman times for the benefits of its sulphurous waters which relieve rheumatism and treat the respiratory tract.
Indeed, thanks to its highly sulphurous springs already exploited in Roman times, Montbrun-les-Bains was a very fashionable resort from the 16th century to the Revolution. As thermalism was in vogue, the Marquis de Suarez d'Aulan had a spa establishment built there in 1865, copied from the one in Baden-Baden. Montbrun then became an important spa village cited as an example in medical circles. The First World War was unfortunately fatal to the establishment's activities, which could not reopen after the conflict. After major works, the resumption of thermal activity would not resume until the 1970s and 1980s.