Architecture of France: Great Buildings Online has images and discussion of some of the most famous buildings in France.
Architecture of France: Guide to French architecture including Paris, Tours, Chenoceau, and Amboise from Archiseek. Photographs of significant buildings with short histories.
Fountains, Springs and Lavoirs in Southern France: Bob Drake's overview and annotated photographs of historic local fountains and communal washing-places.
French National Monuments: The official site of the responsible government body provides images, history, news, and information on 200 historic structures. Choice of English and French versions.
Medieval Architecture in France: Images of French cathedrals, churches and abbeys from Alison Stones, Images of Medieval Art and Architecture.
Versailles, France: Elegant bilingual official site offering history, guided tour via an interactive map, 360-degree panoramas, gallery of masterpieces and visitor information.