The parish church of Kehrig, consecrated by Karden, and the tithe belonged to the Castor monastery in Karden until 1802. 1656 owned the church of Kehrig, which after de Lorenzi from the 13th / 14th. It is said to have originated in the 18th century, three altars. The main altar was consecrated to Castor, the side altars to Mary and Peter. Today's parish church, which was built between 1869 and 1872 by the Düsseldorf architect Pickel, is consecrated to St. Kastor and St. Katharina.

The pedestal with the inscription and the lower part of the image relief have been preserved from the former dedication monument to the Roman goddess of the hunt from the 2nd century AD.

24 million glittering mosaic stones inspire thousands of church visitors every year. To protect the valuable mosaics, the church can only be visited in conjunction with a guided tour.

Ten pillars mark spots throughout Düren where people suffered at the hands of the Nazi dictatorship.

The only Trappist abbey (silent nuns) in Germany.