Can objects or people themselves be haunted or is it only land or buildings?
Anything can be haunted. While the most common haunting is of a building or specific piece of land, spirits have been known to attach themselves to objects which had great personal and sentimental value to them in life. These spirits travel with the object no matter where it goes. Spirits can also form attachments to people (This is not possession. That is a different thing), often because the person in question either reminds them of a long-gone loved one, is a family member, has lived in the location for a long time and has had direct frequent interaction with the spirit or if the person has strong psychic abilities. This situation is the most rare.