http://www.theatlantic.com/static/infocus/wwi/century/
An interesting and touching piece from 'The Atlantic' presenting modern day photos of WWI sites.
One thing that I found interesting is that during the Verdun Campaign, 9 French villages were completely destroyed. However, the French government still recognises the villages and they are still listed on maps and in official documents. Although nothing remains from these villages, they still have mayors, who are appointed.