The island prison in San Francisco Bay, in use from 1934 to 1963 for men other prisons could not hold. D Block has its own reputation — the isolation cells known as the hole, where prisoners were kept in complete darkness; most of the guards' accounts of screaming come from there, and from cell 14D, where a man is said to have died in a night after shouting that something was in there with him. The bay tribes considered the island a place of bad spirits long before the prison.

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The Crescent Hotel

An Arkansas hotel bought in 1937 by Norman Baker, a man with no medical training who announced he had a cure for cancer and turned the building into a "hospital". People came here to die, at considerable expense; Baker eventually went to prison for mail fraud. In 2019 excavation on the grounds turned up buried jars of human remains. The hotel is still open and sells ghost tours.