Burg Raeren is a moated castle from the end of the 14th century, located near the confluence of the Periolbach and the Iterbach and still partly surrounded by a moat. The original castle was dependent on the Marienstift in Aachen (now Aachen Cathedral), the first known owner was Johann von Alensberg in 1474. The castle was thoroughly changed and expanded in 1583 by Philip von Lomont, bailiff of Walhorn.
Haus Raeren is an excellently preserved, little changed moated castle in beautiful surroundings, which is still surrounded by its moat fed by the Iterbach. Imposing keep with rectangular plan as residential tower in bluestone, nowadays with a high, four-sided slate roof. Haus Raeren, probably the seat of the original lordship, was owned by Carsilius von der Roetschen at the beginning of the 15th century and then in 1443 by his brother-in-law, Emerich von Bastogne. It was his son Emerich, husband of Johanna von Hochkirchen, or he himself, who built the current moated castle.