Rising: Rebuilding Ground Zero

The new World Trade Center, which will rise 1,776 ft, will embody America's physical response to the 9/11 attacks.

About to reach the 1000 ft mark, the tower is effectively reclaiming the New York City skyline.

The story behind what will eclipse Grand Central as New York's iconic transportation hub. The train station that once lay beneath the hallowed ground of the Twin Towers is being rebuilt on a massive scale.

Focusing on the survivors; those who did not flee in the wake of disaster. Instead, they remained after the attacks to rebuild and repair - not just destroyed property, but also their community and life's work.

Steven Spielberg presents the National 9/11 museum, which will use physical remnants of the tragedy, to tell the story of the darkest day.

A new memorial commemorating the names of the thousands lost will be unveiled so families will have a proper place to mourn.