The Andrea Doria wreck lies 240 feet underwater, near Massachusetts, and is known as the “Mount Everest of Wreck Diving.” It sank in 1956 after a collision, claiming the lives of around 46 people. This dive is challenging due to cold water, strong currents, and the risk of the wreck collapsing. Although it attracts advanced divers, it has claimed seven lives and injured four since 2005, making it dangerous for recreational divers to attempt.