Association of Castles & Museums around the Baltic Sea - www.visitcastles.eu
Association of European Royal Residences - www.europeanroyalresidences.eu
Finnish Museums Association - www.museoliitto.fi
Association of Danish Museums - www.dkmuseer.dk
The Scottish Castles Association - www.scottishcastlesassociation.com
The Castles Studies Trust - www.csatlesstudiestrust.com
Association The Swiss Castles - www.dieschweizerschloesser.ch
European Castles Institute - www.deutsche-burgen.org
Association of Vaudois Castles - www.chillon.ch
