A gravity defying university building in Sydney Australia is clad in 320,000 bricks.  Engineers grapple with making an angular arts center tornado proof in Oklahoma.  And a plant-filled office building made out of three giant spheres takes shape in Seattle.

A sculptural new transportation hub for New York's World Trade Center is beset by challenges. Amsterdam gains a striking building inspired by a mountain valley. And a new launchpad for space travel prepares for liftoff in the New Mexico desert.