busty_caver
Member
France has reopened a labyrinth of medieval quarries under the northern town of Arras which the British army converted into an underground hideout for 24,000 soldiers during World War I.
More at:
http://news.bbc.co.uk/2/hi/europe/7384227.stm
More at:
http://news.bbc.co.uk/2/hi/europe/7384227.stm