How trains drove American history

The transcontinental railroad changed just about everything in America: transportation, communications, commerce, cities, politics, even our perception of time. Correspondent David Pogue visits Steamtown National Historic Site, in Scranton, Pa., home to Big Boy, the biggest functioning steam train in the world, to learn how trains helped define an expansive America. "CBS News Sunday Morning" features stories on the arts, music, nature, entertainment, sports, history, science and Americana, and highlights unique human accomplishments and achievements. Check local listings for "CBS News Sunday Morning" broadcast times. Subscribe to the "CBS News Sunday Morning" YouTube channel: https://youtube.com/CBSSundayMorning Get more of "CBS News Sunday Morning": https://cbsnews.com/sunday-morning/ Follow "CBS News Sunday Morning" on Instagram: https://instagram.com/cbssundaymorning/ Like "CBS News Sunday Morning" on Facebook: https://facebook.com/CBSSundayMorning Follow "CBS News Sunday Morning" on Twitter: https://twitter.com/CBSSunday Subscribe to our newsletter: https://cbsnews.com/newsletters/ Download the CBS News app: https://www.cbsnews.com/mobile/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h For video licensing inquiries, contact: [email protected]