Ringling Bros. and Barnum & Bailey Circus train; New Zealand's Taieri Gorge; Lionel train layout; New York's Hellgate Bridge.

A ride through Mexico's Copper Canyon; old logging railroad beneath Mt. Rainier; photographer Ted Benson.

Exploring Southern Australia along the Indian Pacific Railroad; artist John Bromley; collection of steam-powered trains.

Freight hauling technology; Doyle McCormack's locomotive; Tennessee Valley railroad; vintage toy trains.

Northlandz model railroad; author Henry Kisor travels the Rocky Mountains; HO layout; steam trains in Texas.

The Ghan travels through central Australia; street cars; Kentucky Railroad Museum; diesel locomotive; garden railroading.

Joshua Lionel Cowan; toy trains; theme park features steam railroad; model railroad club.

Exploring western and central Cuba; riding the Maine Central Railroad, now called the Conway Scenic Railway.

The cable cars of San Francisco; Homer Henry's passion for railroading; steam trains of the Heber City Railroad.

Riding by rail through the north and south islands of New Zealand; the Omaha Zoo.

Union Station in Washington, D.C.; modeler Howard Zane; Indiana's commuter rail situation; Australia's Great South Pacific Orient Express.

Orange juice; revenue generating unit train; Australian wine tour; model railroad; trolley cars.

Australia's Puffing Billy steam locomotive; the North Carolina Transportation Museum; Union Station in St. Louis.