An art museum is a building or space for the display of art, usually from the museum's own collection. It might be in public or private ownership and may be accessible to all or have restrictions in place. Although primarily concerned with visual art, art museums are often used as a venue for other cultural exchanges and artistic activities, such as performance arts, music concerts, or poetry readings. Art museums also frequently host themed temporary exhibitions, which often include items on loan from other collections.
Gallery is a general term for any building or room used to display art, but unlike an art gallery operated by an art dealer, works from the collection of an art museum are not generally for sale, but held in public trust. Removal of a work from the collection of a museum is deaccessioning, a process defined by the museum's collection management policy.