St. Mary's Church is a considerably large brick building from the 13th century (choir), 14th century (hall longhouse) and the 15th century (west tower). In the southern aisle there are still remains of the medieval painting.
St. Mary's Church is probably one of the most impressive sights of the city of Barth. The construction of the brick church began around 1300, it was first mentioned in 1325. The church was built in three construction phases. Its oldest part, the choir in the east, is early Gothic. With the completion of the tower around 1450, the third building phase was completed . The tower is 80 meters high and has a viewing platform at the height of the clock. The largest bronze bell of the five-part chime dates from 1585. The interior of the church was changed several times and restored by Stüler in neo-Gothic forms. A unique sound promises the organ created by the Berlin organ builder Buchholz and his son. It is one of the most valuable organ monuments in Germany. Its peculiarity lies in the beauty of its sound and in its historical significance. With 42 original stops, the instrument is the largest work of the organ builder Buchholz preserved in Germany and at the same time the great youth work of his son. The organ concerts are a special experience.
The northern part of the church houses a small museum, which houses the church history collection. Worth seeing is a bronze baptismal font (Fünte) from the 14th century, the only one in the area of Western Pomerania.
When visiting the church, you should also climb the tower. During the ascent you can see the vaults from above, have a look at the impressive roof truss and marvel at the bells. After 180 steps you will reach a platform at a height of 55 meters, from which window openings on all sides offer you a fantastic view over Barth, the Bodden and the Fischland-Darß-Zingst Peninsula and the surrounding countryside.