In 2008, Yuko Nii launched the non-profit Yuko Nii Foundation to hold, maintain and preserve contemporary art and historical artifacts and properties, including the landmark building, which Yuko Nii purchased in 1996 and later donated to the Yuko Nii Foundation in 2008.[1][2] The collection includes many Japanese art pieces from the 16th through the 20th century.[6] Some of the artists include Ilya Bolotowsky, Jerry Rudquist, Ansei Uchima, Toshiko Uchima, Judy Chicago, Faith Ringgold, Toshiko Takaezu, Yoko Ono, Yayoi Kusama, Terrance Lindall, Doug Buebe, Beatrice Coron, Kenichi Nakajima, Charles Compo, and as well as her own artworks.[7]