Multiverse (2008), a site-specific LED sculpture by Leo Villareal, is on view in the Concourse walkway connecting the East and West Buildings of the National Gallery of Art. The sculpture, which includes approximately 41,000 LED (light-emitting diode) nodes controlled by custom-designed software, is Villareal's largest and most ambitious work to date. Watch Gallery staff and volunteers install the LED nodes over the course of 65 days (the process was captured in 58,296 photographs). The sculpture was generously funded by Victoria and Roger Sant and Sharon P. and Jay Rockefeller.