Gauge, which indicates the length between the train track rails. The gauge of an O scale train is 1.25 inches or 1¼ inches.

Though now branching into HO and S scale (the latter under the subsidiary American Flyer), O-gauge 3-rail trains continue to be Lionel's bread and butter. The products in both scale and semi scale ...

A line of 19th century rolling stockWatch a video of an unboxing and demo of the Lionel Thomas & Friends battery operated ...

"And Lionel's largest trains, called O Gauge, appeal not just to kids as toys, but to serious collectors too. Benjamin Laremont, an aerospace engineer in the Atlanta area, has more than 100,000 ...

Lionel trains turns 125, celebrating more than a century of holiday magic. From historic models to smartphone-controlled ...