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

The nation's largest operating steam locomotive will pass through northern Indiana as it continues the celebration of America's 250th birthday.

There is still time to catch Big Boy aka the world’s largest operating steam locomotive before its first coast-to-coast tour wraps up. Union Pacific’s Big Boy No. 4014 still has stops scheduled in ...

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 ...

Union Pacific’s Big Boy No. 4014 steam locomotive will roll through Greeley at 1:15 p.m. Wednesday, making a stop at the 10th Street crossing near the Colorado Model Railroad Museum, 680 10th St. It ...

Union Pacific Big Boy No. 4014, the world’s largest operating steam locomotive, is drawing huge crowds during its historic 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 to help commemorate the nation’s 250th anniversary.

The world's largest steam locomotive chugged into Lebanon's 8th St. Station to the roar of crowds as part of a coast-to-coast tour to celebrate America's 250th anniversary. Thousands of people came ...

Union Pacific has rolled out one of its historic attractions to celebrate the 250th birthday of the United States.

CLEVELAND, Ohio — Big Boy No. 4014 is heading back through Ohio, and anyone hoping to catch the world’s largest operating steam locomotive can follow its progress online. Union Pacific offers a live ...

On the hottest day of the year – 102 degrees with a heat index that made it feel like 112 – dozens of people camped out by the side of the tracks at Valley Forge National Historical Park to see the ...