Sunken Pirate City

At the peak of its existence, Port Royal was known for its pirates and killer Kill Devil Rum; at the time, Port Royal was regarded as the most sinful and wicked city in the world. In 1692, the city was hit by a massive earthquake causing numerous residents, buildings, and roads to be sucked into the ground.
At the end of it all, the rest of the city was washed away by a tsunami; since then, Port Royal has become a submerged city that has been explored for years. The famous Captain Morgan was buried in this city, though after the earthquake, his body was mixed with the freshly dead, and his body was lost forever.