Aug 27, 2012 5:19 PM by Lacey Steele
It's a cave in Italy used during World War I, and authentic artifacts are still inside.
Historians knew about the cave because an Austrian officer wrote about it in his war diary, but its location wasn't revealed until two years ago by a retreating glacier.
Now officials are adding it to a map of World War I locations, but you can only visit it with the help of a mountain guide.
2 hours ago