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1:15
In the 20th century, hundreds of thousands of African-Americans moved North.
11:25
The story behind the world's largest sculpture and the shrine of democracy.
0:40
Gutzon Borglum used a concoction of materials to fill in the cracks in Jefferson's head.
8:48
Paul Krugman discusses the relevance of the Rockefellers in today's business environment.
2:58
Cinematographer Boyd Estus talks filming for historical documentary.
0:48
Construction began in January 1933. Workers excavated 3 1/4 million cubic feet of dirt.
0:57
The south tower of the Golden Gate Bridge was built over a thousand feet into open ocean.
14:03
Writer Pete Hamill talks about New York before, during, and after construction of the WTC.
8:00
Photographer Camilo Jose Vergara discusses the visual impact of the World Trade Center.