The 1.2-million-pound Union Pacific Big Boy No. 4014 will stop across the East Coast and Midwest this summer to celebrate the U.S. semiquincentennial.

World's largest operating steam locomotive makes stop in Denison and Carroll ...

The world's largest steam engine is returning to Boone during its coast-to-coast tour. The Union Pacific Big Boy No. 4014 is taking a historic tour as part of the nation's 250th anniversary, ...

When it comes to the most powerful engines in modern-day, you wouldn't be alone if your mind immediately went to the highly advanced rocket engines powering spaceflight. What might be more surprising, ...

The introduction of several advanced, efficient, and more robust power options over the years has largely overshadowed steam engine technology. However, it was a revolutionary technology that, upon ...

The world's largest operating steam locomotive, "Big Boy No. 4014," is on a nationwide tour. The historic train will pass through Chemung County, New York, on Thursday afternoon. While there are no ...

A caboose brings up the rear of a train. (Photo by Art Smith) A group of historical amusement park steam engines continue to work building up steam and doing what they were designed to do, haul people ...

The Union Pacific No. 4014 "Big Boy" locomotive passed through North East, Pennsylvania, on its East Coast tour. Thousands of spectators gathered to see the world's largest steam locomotive, which is ...