The origins of the railway line date back to 1907;but its construction began in 1913.In 1917;with World War I in full swing;the entire route was opened without any ceremony.The railway proved its usefulness for linking the towns of Monti Prenestini and Simbruini which at the time were served by a few inadequate roads.The events of World War II put a strain on the efficiency of the railway;which began to face competition from road transport.Political inertia contributed to the slow agony of the line and its demise;in this way;a piece of railway engineering has disappeared forever.After more than twenty years of neglect and by now in a state of decay;a small group of individuals restored the tracks in the area of Colonna station;and today they are home to an extensive collection of historic rolling stock;the passenger building is the heart of the museum with a collection of photographs of life in the station;an exhibition of vintage objects and equipment and the faithful reconstruction of the office of the stationmaster.Today the 500 metres of track are all that is left of the entire line.