Invisible Universe Revealed
The story of the Hubble Space Telescope.
The Great Math Mystery
Take a mathematical mystery tour with Dr. Mario Livio.
Hagia Sophia: Istanbul's Ancient Mystery
Examine Hagia Sophia’s seismic secrets, which have insured its survival through a dozen earthquakes.
Petra: Lost City of Stone
Follow an archaeologist and sculptors to learn how the people of Petra built their city of stone.
Colosseum: Roman Death Trap
Watch a team re-create a lifting machine and trap-door system to release a wolf into the Colosseum.
Sinkholes: Buried Alive
Sinkholes are examined. The collapses can be gradual.
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4/30/15 9:00 PM
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On the anniversary of 9/11, Nova presents an epic story of engineering, innovation, and the perseverance of the human spirit. With extraordinary access granted by The Port Authority of New York and New Jersey, Engineering Ground Zero follows the five-year construction of One World Trade Center and the National September 11 Memorial & Museum.
Nova captures the behind-the-scenes struggle of architects and engineers to make the buildings safe and highly secure under the pressures of a tight schedule, the demands of practical office space and efficient "green" architecture, and the public's expectations of a fitting site for national remembrance.
Featuring interviews with 1 WTC architect David Childs; Chris Ward, executive director of the Port Authority of New York and New Jersey; Mayor Michael Bloomberg, chairman of the 9/11 Memorial Foundation; and Michael Arad, the man behind the breakthrough concept for the 9/11 Memorial.
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