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Danger in the Tunnels
0:20
Danger in the Tunnels
In June, 1902, subcontractor, Ira Shaler, suffered a fatal accident in the east tunnel.
Travel the Panama Canal
3:00
Travel the Panama Canal
Ride through the Panama canal with this time-lapse video of the locks in action.
Panama Canal Animation
0:39
Panama Canal Animation
An animation demonstrating the lock system of the Panama Canal.
Travel the Panama Canal
2:59
Travel the Panama Canal
Take a boat through the Panama canal with this time-lapse video of the locks in action.
Flood Film Clips
2:39
Flood Film Clips
Footage from the 1927 flood, including shots of workers and aerial views of the flooding.
Interview with Cinematographer James Callanan
7:31
Interview with Cinematographer James Callanan
A behind the scenes interview with cinematographer James Callanan.
Historian Ira Berlin
9:14
Historian Ira Berlin
Historian Ira Berlin discusses the state of the nation on the eve of the Civil War.
Building Diversion Tunnels
2:47
Building Diversion Tunnels
The most dangerous phase of Hoover Dam's construction was building the diversion tunnels.
The Pneumatic Subway
1:53
The Pneumatic Subway
Alfred Ely Beach had an idea for a pneumatic subway, pulled by a rope of air.
New York's Topography Challenges
1:38
New York's Topography Challenges
New York’s topography presented a special engineering challenge for subway planners.
Powering New York's Subway System
2:06
Powering New York's Subway System
Running New York's subway would require the most powerful electrical plant in the world.
Vets Remember: Ed Stewart
1:06
Vets Remember: Ed Stewart
Ed Stewart, Sergeant in the 84th Infantry, describes the sound of artillery fire.
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