This is an image of the Ships Bell of HMS Hood in her resting place.
In the resulting Battle of the Denmark Strait, one or more of Bismarck's fifteen-inch shells got into Hood's after magazines. They erupted in a massive explosion. The great ship sank in moments with all but three of her crew, an event that shocked the Royal Navy, the British nation and the entire World. HMS Hood's remains were located and photographed by a British deep sea expedition in July 2001