Church of Saint Ulrich in Altenstadt (today part of Wissembourg) was built originally around 1050 and it was rebuilt in the 12th century. The church suffered damage in the Peasants' War in 1525. Today the Romanesque church is also the starting point of the Route Romane d'Alsace.
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.