Doug Aitken, SONG 1 (still), 2012, outdoor video installation on 360-degree facade of Hirshhorn Museum and Sculpture Garden, Smithsonian Institution, Washington, DC, seven-channel composite video (color, sound), 11 projections forming one screen, 34:44 minutes/loop, 50 × 725 ft. circumference (15.2 × 220.9 m circumference), commissioned, with generous production support, by the Hirshhorn Museum and Sculpture Garden, Smithsonian Institution