The Ruhnu wooden church, built in 1644, is the oldest known wooden building in Estonia. The church's baroque-style tower was finished in 1755. The oldest parts of the building are the polygonal choir and altar, and the nave. The altar is covered with a thin, polished stone slate; the oaken frame stands on sand and is open towards the south.
The stone Lutheran church next to the wooden one was built in 1912 and is currently where services are held.
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.