Man behind WikiLoot hopes crowdsourcing experiment will help to find some of the world’s oldest and most valuable treasures
Treasure from sunken galleon must be returned to Spain, judge says
US court says $500m of gold and silver coins recovered by US treasure-hunters from Atlantic in 2007 belongs to Spain
US diving crew finds wreck of British submarine used in second world war
HMS Olympus struck a mine off the coast of Malta as it tried to evade German and Italian warships on 8 May 1942