The church of Sastamala in Karkku (dedicated to St. Mary) was built in the end of 15th century. In the Middle Ages Karkku was the spiritual and administrative center for the northern Satakunta area. Unfortunately church was nearly abandoned for decades in the 19th and 20th centuries. During this time for example the floor was destroyed. The church was renovated in 1960-1977 and today it's used mainly for summer ceremonies.
There is a fine collection of historical artefacts in Sastamala church. Oldest items are probably a stone font from the 13th century and the part of gravestone with engraving "1304".
Ogrodzieniec Castle is a ruined medieval castle originally built in the 14th–15th century by the W³odkowie Sulimczycy family. Established in the early 12th century, during the reign of Boles³aw III Wrymouth, the first stronghold was razed by the Tatars in 1241. In the mid-14th century a new gothic castle was built here to accommodate the Sulimczycy family. Surrounded by three high rocks, the castle was well integrated into the area. The defensive walls were built to close the circuit formed by the rocks, and a narrow opening between two of the rocks served as an entrance.
In 1470 the castle and lands were bought by the wealthy Cracovian townsmen, Ibram and Piotr Salomon. Then, Ogrodzieniec became the property of Jan Feliks Rzeszowski, the rector of Przemy¶l and the canon of Cracow. The owners of the castle about that time were also Jan and Andrzej Rzeszowskis, and later Pilecki and Che³miñski families. In 1523 the castle was bought by Jan Boner.