The 48-arch span is the world’s longest stone arch bridge. Kevin Burkholder ...

Big Boy No.4014 is heading to the northeast for the first time, making a two-day stop in Philadelphia.

Something big is coming to Western Pennsylvania. The world’s largest operating steam engine, Union Pacific Big Boy 4014, is ...

Let us know! Union Pacific’s Big Boy No. 4014, the world’s largest operating steam locomotive, chugged through Pottstown in its maiden east coast voyage in celebration of America’s 250th birthday.

The world's largest operating steam locomotive will soon make a stop in the capital city. Union Pacific's "Big Boy" No. 4014 ...

CLEVELAND, Ohio — Big Boy No. 4014 is scheduled to roll across Northeast Ohio on Monday, and viewers have a few ways to follow the world’s largest operating steam locomotive as it heads east. Union ...

The world's largest operating steam locomotive, Union Pacific's Big Boy No. 4014, is returning to Kansas City as part of its ...

Union Pacific's Big Boy No. 4014, the world's largest steam locomotive, makes a whistle stop at Lebanon Station on Tuesday.

How does this railway engineering milestone work? The train traveled 275 kilometers between the Newman and Yandi mines to the ...