New York’s Lincoln Center complex has tapped husband-and-wife team Billie Tsien and Tod Williams to design the new indoor atrium that officials hope will lead to higher ticket sales and the emergence of the center as a public gathering space. “Their early ideas for the atrium include a stone platform that could serve both as a bench and as a stage for free performances by Juilliard students. They want to incorporate some of Lincoln Center’s signature materials, like bronze detailing and travertine.”