International Castle Research Society has had five exhibitions between 1998 and 2009, one of which was in the LVR State Museum.
1998 1998 1999 1999 2000 2000 2000 2001 2001 2002 2003 2004 2004/05 2005 2005 2005/2006 2006 2006 2009 LVR State Museum Models of Medieval Castles Castles of the Crusades. A view in miniature French Donjons: Castle of Coucy, Medieval Life in Miniature Castles and Bazaars of Crusader Times In the Days of the Donjons (Au temps des donjons) Donjon of Coucy Aleppo to Coucy  Orient to Occident French Donjons Medieval Skyscrapers Coucy 1225 French Castles French Donjons: Castle of Donjon French Donjons French Donjons  Mighty Castles French Donjons Chateau de Coucy, Image et memoire Les donjons francais Les donjons de l'ouest de la France French Donjons 
