Union Pacific’s 1.2-million-pound iron giant is on its first coast-to-coast tour. At every stop, rail fans break down.

The Union Pacific’s Big Boy No. 4014 locomotive will be making stops in Kansas later this week. The 1.2 ...

Union Pacific Big Boy No. 4014, one of the world's most renowned locomotives, is scheduled to return to the Kansas City area ...

Union Pacific’s Big Boy No. 4014, the world’s largest operating steam locomotive, will travel through Lawrence once again, ...

The historic "Big Boy" steam train will be making its final passes through Illinois as it heads back west. Here's where to ...

Hundreds gathered in Rocky River as Union Pacific's Big Boy No. 4014 steam locomotive made a brief historic stop during its ...

There's another chance to see the world's largest operating steam locomotive on its way back home.

Big Boy No. 4014 is considered the world’s largest operating steam locomotive, and it brought spectators and train ...

Union Pacific’s Big Boy is back in the Midwest after the East Coast portion of its Coast-to-Coast Tour celebrating America’s ...

Big Boy No. 4014 passed through Alton, East Alton and Granite City en route to St. Louis for free Union Station viewing.

Union Pacific's only working steam engine pulled into Hermann on Monday on its cross-country tour for the America250 ...

Welcoming Big Boy: Photos, videos capture world's largest operating steam engine in Western Pa.