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

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

Union Pacific's legendary Big Boy 4014 is the world's largest and most powerful operating steam locomotive.

There is still time to catch Big Boy aka the world’s largest operating steam locomotive before its first coast-to-coast tour ...

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

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

Union Pacific Big Boy No. 4014, the world's largest operating steam locomotive, is making its way through the Midwest.

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 ...

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

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

The world's largest operating steam locomotive made a stop Thursday at the Reading & Northern Outer Station in Berks County as part of its coast-to-coast semiquincentennial tour.

The hulking black train engine is the world’s biggest working steam locomotive, and is in the midst of a coast-to-coast tour ...