The Carnegie Library of Homestead in Munhall, PA, is reportedly haunted by the spirits of steel workers and shadowy figures, with unexplained voices and books flying off shelves being common reported paranormal activities. These occurrences are often linked to the violent labor history between Andrew Carnegie and the steel workers, with the library built to mend relations with the community. The alleged hauntings have been investigated by paranormal groups like TAPS on the TV show "Ghost Hunters". Witnesses have spotted apparitions, including shadowy figures and figures resembling steel workers. Unexplained male and female voices have been heard within the building. Books have been observed flying off shelves or moving spontaneously. During paranormal investigations, investigators have reported feeling cold air and unexplained nausea.