Former Montreuil Abbey

All that remains of this abbey of Cistercian nuns, established in 1651 on the site of a medieval leprosarium, is the 12th-century chapel, the entrance portal and the facade and roofs of the fine building constructed in the 17th century, the abbey having been badly damaged by Allied bombing in 1944.
It is now home to the Office Public de l'Habitat de l'Aisne (OPAL), and the chapel is listed as a Historic Monument.