The church's 86.7-metre-high (284 ft 5 in) central spire, built in 1898 to 1903, is the highest in the state and forms a significant feature of the town's skyline.

St. Mary's was a site of events relating to the German Peasants' War around 1525, as the revolutionary leader Thomas Müntzer was active as a pastor at the church.

The northern side choir was a baptismal chapel dedicated to Saint Nicholas, while the sacristy is located under the southern one.

The south portal of the transept, which serves as the main entrance to the church, is elaborately structured and ornamented in a way typical of the Gothic style.

They represent Emperor Charles IV, his wife Elisabeth of Pomerania, as well as two of his children, perhaps also a court lady and a courtier.