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The Government's Plan
1:06
Building the 700 foot high dam was only one piece of the puzzle.
The High Scalers of Hoover Dam
2:33
During the dam's construction, the job of the high scaler was by far the most dangerous.
Rerouting the Colorado River
0:44
Workers moved the Colorado River from the bed it had known for 12 million years.
Alfred Beach's Subway Plan
1:31
The first effort to build a subway dates back to the 1850s with Alfred Ely Beach.
Constructing New York's First Subway
1:23
At least 7,700 men would be needed to build the Interborough Rapid Transit, or IRT.
Danger in the Tunnels
0:20
In June, 1902, subcontractor, Ira Shaler, suffered a fatal accident in the east tunnel.
Rockefellers at Play
1:35
Home videos of Rockefeller family members at the family estate.
Flood Film Clips
2:39
Footage from the 1927 flood, including shots of workers and aerial views of the flooding.
Interview with Producer David Grubin
5:55
An interview with David Grubin, producer of Abraham and Mary Lincoln: A House Divided.
Historian Joseph Glatthaar
7:20
Historian Joseph Glatthaar discusses African American regiments in the Civil War.
Hoover Dam: Moving the Concrete
2:59
On June 6, 1933, workers poured the first bucket of concrete that would build the dam.
Influenza: Chapter 1
9:49
Watch chapter 1 of Influenza
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