National galleries are institutions that house and display collections of art, typically focusing on works of national significance. They often feature paintings, sculptures, and other forms of visual art created by artists from a specific country or region. These galleries aim to preserve cultural heritage and provide public access to important artworks. Many national galleries also offer educational programs, exhibitions, and events to engage the community and promote art appreciation. Notable examples include the National Gallery in London, which showcases European paintings, and the National Gallery of Art in Washington, D.C., known for its extensive collection of American and European art.