Architect Tod Williams ’65 *67 and his wife and professional partner Billie Tsien have made their mark on American urban landscapes with award-winning projects such as the David Rubenstein Atrium at New York’s Lincoln Center, the Barnes Foundation museum in Philadelphia, and Skirkanich Hall at the University of Pennsylvania. Their firm, Tod Williams Billie Tsien Architects, also designed Princeton’s Andlinger Center for Energy and the Environment, currently under construction next to the Engineering Quadrangle.