The Church of Virgin Mary is a three-aisle basilica church (the nave is higher than the aisles) with large separated chancel closed by five-side apse. It was erected in the second half of the 14th century and enlarged in 1500s. The church was partially damaged during II World War and rebuilt in 1948. In 2003 the spire and dome of the church tower were reconstructed.
More valuable monuments in the temple are pulpit coming from late Renaissance made in 1609-1630 by master from Słupsk, Paweł Waltersdorf and funded by the guilt of amber-processors (with 43 members at that time). The pulpit is covered with bass-relieves, richly ornamented polychromed and gilded. The entrance to the pulpit is embraced by a portal (the lock in the door comes from 1609). Marvelous, first final of the pulpit, the so called amber crown from the first half of the 17th century was taken away during II World War. Worth attention are also hanging candelabra – some Baroque from the 18th century, some Neo-Rococo from the 19th century – as well as numerous Baroque candlesticks form the 17th-18th centuries and later from the 19th century.
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.