A shipwreck collapsing into itself
When Titanic was discovered in 1985, it set off a storm of interest. In the years since, experts have noted the ship's intense decay. As National Geographic notes, “already explorers have documented caved-in roofs, weakening decks, a stern perhaps on the edge of collapse, and the disappearance of Titanic's crow's nest.” While mollusks have eaten most of the Titanic’s wood, microbes have consumed its metals, leaving icicle-like “rusticles” along the ship. Experts believe that eventually, the ship will disintegrate into a rust stain on the ocean floor.