Built in the 1940s, Big Boy No. 4014 retired in 1961 after traveling for more than one million miles. It's now making its way across the country in honor of America's 250th birthday ...

Huge crowds of train fans turn out as the 1940s era Big Boy steam locomotive is making a rare trip cross country.

CLEVELAND, Ohio — The world’s largest operating steam locomotive is heading back to Ohio, bringing four consecutive days of public viewing opportunities across the state. Union Pacific’s Big Boy No.

Big Boy is the largest and most powerful operating steam locomotive in the world, and FOX4 got a look in the cab.

Here is where you can see Big Boy No. 4014 in Kansas this week.

CARROLL, Iowa (KTIV) - Union Pacific’s Big Boy 4014, the largest and most powerful operating steam locomotive in the world, rolled through Siouxland this weekend, drawing hundreds of spectators to ...

TOPEKA (KSNT) – Union Pacific’s Big Boy No. 4014 is rolling into Topeka on July 23. The event will be at Great Overland ...

MEXIA, Texas (KWTX) - The world’s largest operating steam engine, Big Boy No. 4014, made a stop at E Commerce St. Crossing in Mexia as part of the Pacific Union’s Heartland of America Tour. Hundreds ...

Union Pacific's vintage steam locomotive is part of America 250. The behemoth engine made whistle stops in Springfield and ...

The world’s largest operating steam locomotive will roll through Missouri next week as Union Pacific’s Big Boy No. 4014 stops ...

Union Pacific’s Big Boy No. 4014, the world’s largest operating steam locomotive, is set to pass through Berks County twice in early July, giving rail fans, families, photographers, and history lovers ...