How do you make a great public space inside a not-so-great building? Liz Diller shares the story of imagining a welcoming, lighthearted -- even, dare we say it, sexy -- addition to the Hirshhorn Museum in Washington, DC. (From The Design Studio session at TED2012, guest-curated by Chee Pearlman and David Rockwell.)

In this engrossing EG talk, architect Liz Diller shares her firm DS+R's more unusual work, including the Blur Building, whose walls are made of fog, and the revamped Alice Tully Hall, which is wrapped in glowing wooden skin.

In this emotionally charged conversation with journalist Kurt Andersen, designer David Rockwell discusses the process of building a viewing platform at Ground Zero shortly after 9/11.