The St. Birgit Memorial Church was built probably between years 1502-1505. It is dedicated in memory of St. Birgit who died in Rome in 1373 and was proclaimed as a saint in 1391.
Situated on the bordering area between the historic districts of Satakunta and Häme, the architectural style of the church exhibits certain influences from both of these areas. The shapes of the nave, rich in decoration, are typical of Satakunta, whereas the large, protruding cornerstones are unique to a very few number of churches in Häme.
Olargues is a good example of a French medieval town and rated as one of the most beautiful villages in France. It was occupied by the Romans, the Vandals and the Visigoths. At the end of the 11th century the Jaur valley came under the authority of the Château of the Viscount of Minerve. The following centuries saw a succession of wars and epidemics, and it was not until the 18th century that Olargues became re-established. This was due to the prosperity of local agriculture and artisanal industry.
The Pont du Diable, 'Devil's Bridge', is said to date back to 1202 and is reputed to be the scene of transactions between the people of Olargues and the devil. The old village is clustered around the belltower, which was formerly the main tower of the castle (Romanesque construction). The old shops have marble frontages and overhanging upper storeys. A museum of popular traditions and art is to be found in the stairs of the Commanderie.