The construction of St. John's Church started in 1289. Now a Lutheran church, it used to be Roman Catholic until the Reformation in the 16th century. While its spectacular interior justifies the visit, the church also possesses many treasures and works of art from the past, for instance a gold tabernacle from the 14th century and many precious paintings. Many concerts are offered year-wide including several short organ concerts 2 evenings a week. If you look at the tower, you will notice that it is not straight. Over time the tower has shifted 200 cm to the west!