Farnsburg castle ruins are the remains from the 14th century. It was built by the Counts of Thierstein between 1319-1342. In the 15th century Farnsburg lost its military purpose. The buildings were left to decay and it was easily conquered in 1653 (the Peasants' War) and finally in 1798 (by the revolting farmers). In 1798 the city Vogt was finally expelled and the castle was set on fire by landowners. The ruin was then used as a quarry.
A good starting point for a hike to the ruins is the Landgasthof Farnsburg - from here it is 20 minutes walk to the ruins. There are also BBQ and picnic facilities in close proximity to the ancient ruins.
The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.