The submarine was nicknamed 'Avenger': 3 years of submerging 44 enemy ships, changing into a museum
during service, the submarine uss bowfin sank 44 enemy ships with a total tonnage of nearly 68,000 tons.The horrific 'ghost submarine' disaster during World War I, the biggest maritime secret in history
the german ub-65 submarine exploded nearly a century ago but the cause of this puzzling accident is still a question mark so far. what happened to the submarine that was4 most mysterious mystery submarine incidents in military history
only in 1986 had four giant submarines of four different countries mysteriously disappeared. will this historic tremor tragedy involve a series of ghosts on the ocean 8 years ago?