...that in the early- to mid-19th century, horsecars replaced omnibus operations in many cities due to the low rolling resistance of metal wheels on iron or steel rails, allowing the animals to haul a greater load for a given effort?
...that among the more unusual railway station layouts are stations within a tunnel, stations at a crossing, stations within a triangle and stations on a balloon loop?
...that when the Cabinet of Ministers of Ukraine issued the decree to construct the Donetsk Metro in Donetsk, Ukraine on December 30, 1991, the completion date was first scheduled for 2002, later rescheduled to 2005, and is now still unknown due to the unstable economic situation in the city?
...that London Underground trains are built in two different sizes due to the difference in the loading gauge between the newer and larger sub-surface lines and the older and smaller tube lines?
...that a railroad plough, examples of which have been used in wartime, can be used to destroy the ties in a section of track, rendering the track unusable?
...that two years before Mallard's record breaking run, Deutsche Reichsbahn-Gesellschaft's BR 05 class locomotive number 05 002 set the world's speed record at 200.4 km/h (124.5 mph) on May 11, 1936, on a run between Hamburg and Berlin?