The idea for a museum dedicated to the railroad was born at the beginning of the 20th century. However, its first version only opened in 1971. First housing steam locomotives, the museum grew and diversified with the construction of new buildings. The Cité du Train underwent a rejuvenation before reopening in 2005. In the Steam, how does it work? space, a 232 U 1 steam locomotive starts up every 30 minutes in a deafening noise.