Building the Transcontinental Railroad

It was the moonshot of the 19th century – crews working East from Sacramento and West from Omaha to build the Transcontinental Railroad, meeting on May 10, 1869 at Promontory Summit, Utah. To help mark the project’s 150th anniversary, the 7,000 horsepower Union Pacific steam engine #4014, built in the 1940s, has been restored. John Blackstone takes a ride, and talks with descendants of Chinese immigrants who were key to completing the 1,776-mile-long railroad. Source