The oceans are the largest bodies of water on Earth, and the Mariana Trench in the Pacific Ocean is the deepest place on our planet - a staggering 11 kilometers deep, which is even deeper than the height of Mount Everest. With such vastness and depth, it's no surprise that we have barely scratched the surface of what lies beneath the ocean beds. Throughout history, we've encountered mysterious discoveries in the ocean, each one more fascinating and puzzling than the last. Join us as we explore 15 Peculiar Discoveries That Deep Sea Divers Discovered That No One Was Supposed To See.