A broad art form that can include combinations of other media. Installation art is generally presented as an environment in which the viewer stands or sits to experience the piece. The distinction between an installation and a series of related artworks in the same space is a little blurry, but it usually isn't necessary to get too strict about such categorizations.

While the critical notion of the installation is unique to the late 20th century, such classical works as Bernini's Ecstasy of St. Teresa and Michaelangelo's Sistine Chapel could certainly be classified as installations.