Dan Graham

Daniel "Dan" Graham (born March 31, 1942) is an American artist, writer, and curator.

 

From wikipedia:
"Dan Graham’s artworks are said to blur the line between sculpture and architecture. Since the 1980s, Graham has been working on an ongoing series of freestanding, sculptural objects called pavilions; they represent a hybrid between a quasi-functional space and an installation that serves to expose processes of perception and certain expectations."