From its inception, MoMA PS1 has championed the innovative and the experimental. The premiere exhibition, "Rooms", held in June 1976, featured the works of 78 artists, many of whom created site-specific installations in the former classrooms. For "Rooms", the sculptor Alan Saret cut a tiny hole in one wall, creating an almost heavenly aureole of light at one end of the third-floor hallway. The museum has featured the works of the artists Janet Cardiff, David Hammons, Kimsooja, Hilma af Klint, Donald Lipski, John McCracken, Dennis Oppenheim, Michelangelo Pistoletto, Alan Saret, Katharina Sieverding, Keith Sonnier, Michael Tracy, Franz West, Maria Lassnig, Judy Rifka, and Peter Young. Its landmark survey of Mike Kelley in 2013 was the largest exhibition of the artist's work at the time. A focus has been on outsider artists such as Henry Darger, who was included in "Disasters of War: Francisco de Goya, Henry Darger, Jake and Dinos Chapman" (2000). "Greater New York," a survey of emerging artists working in New York City, was established in 2000 and is mounted every five years. Many exhibitions organized by MoMA PS1 travel to museums in the United States and abroad, including collaborations with Kunst-Werke Institute for Contemporary Art in Berlin.