article_snippet.sent: During World War I, soldiers would take refuge in the carved-out rooms and pathways.
article_snippet.sent: The front was sometimes mere miles away; the Battle of the Somme, one of the bloodiest in world history, was fought nearby in 1916.
article_snippet.sent: Someone could be in this place one day and the next fighting at the front," Someone said.
article_snippet.sent: It could very well have been the last time Someone recorded Someone name as a living, breathing human being," Someone said.
article_snippet.sent: 7 things you didn't know about the man who started WWI .