What Is The Biggest Sunken Treasure Ever Found?
What Is The Biggest Sunken Treasure Ever Found? An Engineer Found the Most Valuable Underwater Treasure Ever Discovered. In July 1985, after a dogged 16-year-search, Mel Fisher found the Nuestra Senora de Atocha, which carried $1 billion in treasure. What is the richest shipwreck ever found? On July 20, 1985 – 35 years ago today