The iconic "Polar Express," train was inspired by the 1941 Pere Marquette 1225 steam locomotive. Now, fans hope to make the train a Lego kit.

They might be outdated, but their mechanism is still mesmerizing, and there’s something nostalgic about watching and hearing a steam locomotive. It’s not something an electric motor can give you, ever ...

While the basic concept of LEGO bricks might have changed little since the mid-20th century, some components such as motors and sensors are still affected by technological progress and end up obsolete ...