The biggest, the longest, the oldest, the fastest... This involving six-disc collection features the USA's most fascinating and eye-catching trains from a variety of categories, from the biggest and the longest to the oldest and most valuable.

From the high-tech specifications of the brand new 17,000 horsepower Union Pacific Produce Express to the romance and history of the Barnum & Bailey Circus Train, the longest privately-owned train in the world, this collection will open the eyes of train enthusiasts to sights they've never seen before.