Built from 1352, St. Peter's Church belonged to the parish of the Teutonic Order in the new town. The building was given its present form in 1893-1895 by re-vaulting and extending the nave to the west with a new façade. A memorial chapel for the victims of the First World War was consecrated in the north aisle in 1927. The monument „Outraged Christ“ by Walter Krause (1891-1967) in front is considered the most important work by the Mühlhausen sculptor. St. Petri is an open church on the Loccum-Volkenroda pilgrimage route.