Overview
An art museum, often also called an art gallery, is an institution that acquires, houses and exhibits works of visual art for public viewing, education and preservation. Exhibits commonly include paintings, drawings, prints, photographs, and three-dimensional objects such as sculptures and installations. Many museums are publicly accessible with regular opening hours, while some operate as private collections or by appointment only.
Collections and characteristics
What distinguishes an art museum from many commercial galleries is its emphasis on long-term ownership and stewardship of artworks. Museums build collections through purchase, gift, bequest or long-term loan and maintain records and provenance. Typical categories include:
- Paintings — oils, tempera, watercolors and works on panel or canvas; explore movements and techniques (see painting).
- Sculpture — freestanding, relief and site-specific pieces in stone, metal, wood and newer materials (see sculpture).
- Photography and works on paper — photographs, prints and drawings that require particular conservation conditions.
History and development
Art museums evolved from private cabinets of curiosities and aristocratic collections. During the 18th and 19th centuries many states and cities established public museums to make art accessible as part of civic education. Over time museums grew more professional, developing specialized staff, cataloguing systems and conservation laboratories. University-affiliated museums and galleries also became important centers for scholarship; in the United States there are roughly 700 university art museums and galleries that support teaching and research.
Roles and functions
Modern art museums perform several core roles: collecting, preserving and studying art; organizing temporary and permanent exhibitions; and providing educational programs for schools and the public. Exhibitions can present chronological surveys, thematic shows, retrospectives of a single artist, or contemporary and experimental art. Museums also serve as places for scholarship and publication, offering catalogs, lectures and guided tours to deepen understanding.
Organization, care and professionals
Museums are run by teams that include directors, curators, registrars, conservators, educators and support staff. Curators are responsible for shaping the collection and mounting exhibitions (curators), while registrars manage documentation and legal ownership issues (ownership and accession). Conservation teams stabilize and restore works, and climate control and security are key parts of daily operations to protect fragile materials.
Distinctions and notable facts
An art museum differs from commercial galleries, which primarily exhibit art for sale; and from art centers or cultural centers, which may combine performance, community programs and visual arts. Many museums now complement physical displays with online collections, virtual tours and digital archives, expanding access beyond visitors who can attend in person. As stewards of cultural heritage, art museums play a vital role in preserving artistic traditions while also presenting new and diverse voices.
For further reading on specific media and museum practice, follow these resources: painting, sculpture, museum ownership and accession, and curatorial practice.


