The Oliver House in Bisbee, Arizona, built in the early 1900s, is described as haunted due to its violent past, including numerous deaths and some murders. Guests and investigators report experiencing unexplained sounds, doors and windows moving on their own, feelings of being watched, and shadowy figures. Haunted areas include the second floor, which has a chilling atmosphere and is known for paranormal activity, and Room 13, said to be haunted by Nathaniel Anderson. Guests report hearing strange noises and eerie whispers. Doors and windows are said to open and close by themselves, and lights turn on and off unexpectedly. Visitors often feel a chilling atmosphere and the distinct sensation of being watched. Some areas have dark reputations for shadowy figures or ghostly encounters. Second Floor: This area has a particularly chilling atmosphere and is a hotspot for ghostly activity. Room 13: This room is reportedly haunted by a spirit named Nathaniel Anderson. Grandma Room: This room is said to be inhabited by the ghost of an elderly woman, who is sometimes seen in a rocking chair. The house was initially used as an office and boarding house for Calumet & Arizona Mining Company executives and miners. The violent history of the house contributes to its haunted reputation, with a high number of deaths and some murders recorded.