Built in 1881 by Hannes Tiedemann, Franklin Castle is considered one of America’s most haunted mansions. The house saw numerous family deaths, including children who died under mysterious circumstances, and legends speak of hidden rooms and passages where dark deeds occurred. Visitors and investigators report disembodied voices, crying children, doors that slam on their own, and shadowy figures pacing the halls. Some stories claim victims of murder remain entombed within the walls.