Uspensky Church, which forms a uniform complex with a long priest house on the northern side, was built in 1783 and belongs to the early classical period. Uspensky Church is located in the same place as the St. Mary- Magdalena's Church of a Dominican monastery founded before 1300.
The details of the building are typical of Russian early classicism. The interior of the church is relatively modest in terms of architecture. The long priest's house had initially been a row house with six apartments, but in 1854- 1855, it was rebuilt and as of that time it forms a single complex with the church.
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.