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NOVA: Ground Zero Supertower

Airs Wednesday, February 26, 2014 at 9 p.m. on KPBS TV

The One World Trade Center skyline.

Credit: Courtesy of Lucas Jackson/Reuters/Corbis

Above: The One World Trade Center skyline.

Solving an Engineering Problem

What are composting toilets, computers, and a restaurant doing suspended hundreds of feet above Ground Zero? In this short video, learn how an engineering conundrum allowed the steel company, DCM Erectors, to install modern amenities at the One World Trade Center worksite.

The 9/11 Memorial Mock-Up

Bronze, granite, and water will all play a role at the 9/11 Memorial. In this short video, the memorial’s architect and designer, Michael Arad, examines a small mock-up that has been assembled at the Brooklyn Navy Yard to see how the materials interact, how they hold up to the elements, and what the finished memorial will look like to visitors.

Find A Name

Use the Memorial Guide to locate a name on the 9/11 Memorial and to learn more about each victim.

Explore the Memorial

Explore EarthCam’s live webcam that brings into view the National September 11 Memorial & Museum. Use the navigation tools to direct the camera. You can also save the high definition image on your computer, print it or share it with friends.

NOVA returns to Ground Zero to witness the final chapter in an epic story of engineering, innovation, and the perseverance of the human spirit: the completion of One World Trade Center.

"Ground Zero Supertower" examines the new skyscraper rising up 104 stories and 1,776 feet from the site where the Twin Towers once stood.

In this update of NOVA’s Emmy-nominated special "Engineering Ground Zero," which featured extraordinary behind-the-scenes access to the struggles of the engineers and architects working at 1 WTC and the National September 11 Memorial & Museum, NOVA goes inside the construction of the tower’s final floors and the installation of its soaring, 800-ton spire and beacon.

NOVA also goes underground to see another engineering marvel taking shape here: the construction of a museum that will house artifacts from 9/11.

The greatest test is still to come, though: Will the final product be a fitting site for national remembrance?

National September 11 Memorial & Museum is on Facebook, Google +, Pinterest, and you can follow @Sept11Memorial on Twitter.

NOVA is on Facebook, and you can follow @novapbs on Twitter. Past episodes of NOVA are available for online viewing, or visit to purchase the "Ground Zero Supertower" DVD.

Ground Zero Supertower Preview

Engineers race to complete 1 World Trade Center as they grapple with the final challenges.

The 9/11 Memorial is a national tribute to the nearly 3,000 men, women and children killed in the 2001 terror attacks and the 1993 World Trade Center bombing. The memorial architect talks about the beautiful design and a 9/11 victim's daughter reveals what the memorial means to her.

Within four months of its September 2011 opening, the National September 11 Memorial welcomed more than a million visitors from across the globe -- people who have come to these hallowed grounds to remember, reflect and pay tribute. Hear what some of those people had to say about their experience.

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