Early Lego train sets date back to 1965. Since then, Lego produced dozens of trains, from vintage steam engines to modern speed trains.
The original 4.5V models had blue rails. The battery-powered, remote-controlled trains of 2006 replaced the 9-volt trains of the previous decade and in 2010, Lego upgraded again with the Power Functions train systems. To really please a train lover and Lego fan, buy a special edition model such as the Emerald Night Lego train from 2009.