The Ulvila Church, dedicated to St. Olaf, is one of the most significant medieval buildings in Finland. The first church was built probably in 13th century to Liikistö, which was a local trade centre. According old documents the graveyard around the church was consecrated in 1347 and church was burnt badly in 1429. Historians believe that the present stone church was built after that between 1495-1510.
There are several medieval and newer artefacts inside the church, for example crucifix and statue of St. Olaf from the 1430s and communion cup from the end of Middle Ages.
The Church has been renovated several times. During the latest renovation in 2005 archaeologists found the biggest medieval coin treasure in Finland. It was buried near the sacristy stone wall in 1390s and included 1476 silver coins.
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.