This article focuses on the conceptualization of the architectural installation, which is at the intersection of architecture and art. Installations, which today have an important place as an artistic activity, emerge in the 1960s and include various arrangements and exhibition activities of architects in relation to gallery space. These artistic activities include temporary or permanent, playful, poetic installations, sculptures and exhibition spaces. As a nexus for the arts and other disciplines, architectural installations enable artists to distance their work from the constraints of the real world, resulting in creative and questioning works. Architectural installations are discussed within intersections with the open-ended, experimental, and questioning features of architecture, such as site-specificity, temporality, variability, and monolithic character. Land art and public art, in which art installations verge conceptually on architectural space, can be used by artists in gallery space, open space, and on an urban scale.