France

Touvet
http://www.atelierdesdauphins.com/forts/touvet/histtv.htm
http://www.schlosser-frankreich.com/chavisit.php?l=de&chateau=4668
http://www.pluct.net/touvet.htm

Oppidum of Entremont, Southern France 

http://perso.orange.fr/f6gcq/oppidum/oppi1.html

Chartreuse
http://www.photos-dauphine.com/Photos/Chartreuse/Chartreuse-iseroise
/De-Montbel-au-Grand-Som.html

Aix-en-Provence
http://www.provencelive.com/learning/default.html

Marseille
http://www.marseillais-du-monde.org/historique_mars.php3

Switzerland

Map of Swiss Cantons
http://www.eye.ch/swissgen/map_m.htm 

Celtic Tribes in Switzerland
http://history-switzerland.geschichte-schweiz.ch/history-celtic-helvetians-switzerland.html

England

British Royal Family Info
http://www.etoile.co.uk/Columns/Paul/040725.html