At last month's LightFair, the 2011 GE Edison Award was presented to Glenn Heinmiller, Paul Zaferiou and Dan Weissman of Lam Partners, Cambridge, Mass., for lighting the United States Institute of Peace in Washington, D.C. The first permanent home of the United States Institute of Peace is prominently located near the Lincoln Memorial in Washington, D.C. The translucent wing-like roofs that connect the building's three curving sections presented the most challenging lighting problem: to light the roofs with no visible sources so they glow softly both inside and outside. A pervasive lighting theme, featuring GE T5 fluorescent lamps, is present throughout the building. Light sources are fully concealed or designed to disappear, revealing and animating but never competing with the architecture. The GE Edison Award competition is open to those lighting professionals who creatively employ significant use of GE light sources (lamps and/or LEDs) in a lighting design project completed during the previous calendar year.