Kårsta church was built in the 1400s but replaced an older church built of wood. The sacristy is the oldest part and was built during the 1200s. In the Western church gable is a runestone walled 'Alrik erected the stone and make the bridge'.
The church is wrapped tightly around Kårsta village's well preserved buildings. In addition to residential buildings there are two school buildings, one from 1848 and one from 1915. It was torn wide school until 1982 when the school operations moved to a newly built school in Kårsta.
The whole village around Kårsta church is the county museum has been singled out as inseparable from the cultural environment.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.