In the frigid winter of 2007 Doug Aitken staged a massive media intervention on the facade of the Museum of Modern Art. In an interview about the public artwork, which incorporates eight monumental projections, Aitken is quoted as saying: “I wanted to try and create something that transformed architecture into a moving flowing space, I wanted to see buildings live and breathe and reflect their communities in a subtle way.” In the official press release put out by MoMA and Creative Time Sleepwalkers is described as activating the building, “enlivening the building’s architecture with the nocturnal journeys of five characters representing city dwellers—a bicycle messenger, an electrician, a postal worker, a businessman, and an office worker.”
Also here’s the MOMA site on the project:http://www.moma.org/interactives/exhibitions/2007/aitken/flash.html
And here’s an article in New York Magazine