Larry Bell, 6 x 6 An Improvisation, Chinati, Marfa, Texas, October 2014 – July 2015. Mixed media, 112 5/8 x 55 11/16 x 4 in. (286.1 x 141.5 x 10.1 cm). © Larry Bell. Photo © Alex Marks, 2014 Courtesy Chinati Foundation