The Grabkammer is a Roman burial chamber dating from the 2nd century, located in the suburb of Weiden on the road to Aix-la-Chapelle, and further cements the important Roman history Cologne. The chamber was used as a family burial site, built over two levels, and contains the busts of a married couple and a young woman. There is also a sarcophagus from the 3rd century. The Grabkammer is open to the public every day except Monday.