Former city of the Dukes of Lorraine, Sierck nestles between 2 hills in a wide meander of the Moselle. In the old alleys, you can admire many houses in Renaissance style. Situated on a rocky promontory overlooking the town, the castle of the Dukes of Lorraine is one of the only 11th century forts in Eastern France whose walls, casemates, massive towers with shooting holes and their underground passages are still in an imposing state.  It is also in Sierck that the Chapel of Marienfloss is located, the place where the Rosary was created in 1414 by Marguerite of Bavaria on the initiative of her confessor Adolphe of Essen and Dominic the Carthusian.

Heritage

• The castle of the Dukes of Lorraine, XII. Century,
• The war memorials of Sierck (1870 war, World War I and II, but also a rare monument dedicated to the German dead people located in the cemetery).
• Former cense of Koenigsberg: entrance gate, house of the sharecropper, monumental well.
• Old streets, XVI. and XVII. Century.
• The quays by the Moselle.
• Quartzite carry of Sierck
• Israelite cemetery, the first in 1620 in the ditches of the castle, the second in 1720 and the third in 1820.

Religious buildings

Church of the Nativity of the Blessed Virgin Mary

Chapel of Marienfloss.