Heritage railway

Black steam locomotive
A tank engine takes on water through a water crane at the Bishops Lydeard station of the West Somerset Railway.
Tourist train in transit on a viaduct of the Sassari–Tempio–Palau railway in Italy

A heritage railway or heritage railroad (U.S. usage) is a railway operated as living history to re-create or preserve railway scenes of the past. Heritage railways are often old railway lines preserved in a state depicting a period (or periods) in the history of rail transport.