Installation art describes an artistic genre of site-specific, three-dimensional works designed to transform the perception of a space.
Generally, the term is applied to interior spaces, whereas exterior interventions are often called Land art; however the boundaries between these terms overlap. Installation art can be either temporary or permanent. Installation artworks have been constructed in exhibition spaces such as museums and galleries, as well as public- and private spaces. The genre incorporates a very broad range of everyday and natural materials, which are often chosen for their evocative qualities, as well as new media such as video, sound, performance, immersive virtual reality and the internet. Many installations are site-specific in that they are designed to exist only in the space for which they were created.