Douaumont Ossuary outside Verdun
Much of WWI was fought in France. Most fighting took place in northern France. The Somme and Meuse departments saw some of the biggest and most famous battles. Below are some suggestions of places to visit. This is by no means complete but it should give you an idea of what you can see. Some of the battlefields have been lost to time, but others like those around Verdun are well preserved and offer the visitor an idea of what the war's aftermath looked like.
Allerey-sur-Saône: Site of an American Army hospital camp and then an agriculture school.
American Soldiers: Photos of American soldiers during WWI.
Beaune American University: During four months after WWI, home to an American university.
Douaumont: Destroyed village.
Fleury-devant-Douaumont: Destroyed village.
Fort de Douaumont: WWI fort.
Nancy: Postcards of Nancy during WWI.
Nonsard-Lamarche: American troops passed through this village during the battle of St. Mihiel.
Ornes: Destroyed village.
Remenauville: Destroyed village.
Saint-Mihiel: American Expeditionary Force battle September 12-19, 1918.
Verdun: Site of one of the most famous battles in WWI.