Designed to Be Unsinkable, the World's Fastest Ocean Liner Finally Hits the Ocean Floor. The 53,330-Ton S.S. 'United States' Is Now the World's Largest Artificial Reef

The 1,000-foot ship, longer than the “Titanic,” once carried celebrities and politicians across the Atlantic in midcentury style. Now, after decades of uncertainty and rust, it’s taking on a second life as an underwater refuge for marine creatures and curious divers…