Inside the Decadent Roman Spa Town Lost to the Waves | Abandoned Engineering | S3 E3 | Full Episode

In this full episode of Abandoned Engineering, we journey across continents to explore four monumental engineering achievements, industrial relics, and lost settlements claiming their place in history before falling silent. From a legendary Roman imperial spa resort swallowed by volcanic activity and coastal waters to a boom-and-bust Appalachian railroad town, a record-breaking naval dry dock, and a remote island penitentiary known as the "Alcatraz of Central America," uncover the fascinating engineering, human ambition, and ruin behind each site. Each week, Forbidden Mysteries uncovers the hidden truths, dark secrets, and extraordinary stories that history tried to forget. From royal scandals and unsolved murders to secret societies, ancient relics, and mysterious ruins, every episode takes you deeper into the shadows of the past. Journey through lost worlds with Abandoned Americana, or uncover shocking secrets in Forbidden History. In the end, the greatest mystery is always what history chose to hide. #ForbiddenMysteries #AbandonedEngineering #ForbiddenHistory #HiddenHistory #SecretSocieties