The Idaho State Penitentiary operated as a prison on the eastern outskirts of Boise from the late 1870s to 1973. Paranormal experts say it is the most haunted place in Idaho.
Moundsville Penitentiary (West Virginia Penitentiary) is an old prison in West Virginia. It opened in 1876 and closed in 1995. Folklore alleges that the spirits of the people who lived, suffered, and died during the nearly 100 years it operated haunt the facility.
Eastern State Penitentiary in Philadelphia, USA, is known as one of the world’s most haunted places.