The Trains That Built America Impossible Engineering : Season 6 Episode 2
TV-G Science 1h 00m int(0)
Aired: May 8th, 2019 @ 9:00 PM EST on Science
The first railroads in the United States were engineering marvels built to conquer America's deadliest places. Using cutting-edge science, engineers and builders changed the nation by connecting the California frontier with the rest of the country.