There has been a spa at Alange at least since Roman times when a bathhouse was constructed with separate facilities for men and women. They already existed in the time of Trajan and Adrian, in the 2nd century CE. The Roman building is rectangular and two circular vaulted chambers can be found, one for women and one for men. In the centre of the chambers are the pools, which are also circular. The vaults in the chambers are hemispherical with skylights in the centre. After several centuries of being abandoned, in the 19th century they were refurbished and the current building was built.
The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.