Pictures credit Norway

Photographers: Arve Kjersheim, NIKU, Jiri Havran, Jan Andersen

Pictures credit United-Kingdom

National Monuments Record

Pictures credit France

Copyrights : AYD, CL, Ministère de la culture et de la communication - direction de l'architecture et du patrimoine

Pictures credit Ireland

Department of Arts, Heritage, Gaeltach and the Islands - Ireland

Pictures credit Spain

Ministerio de Education y Cultura - Fundacion Làzaro Galdiano - Spain