Mainline steam trains in Great Britain
The most famous steam locomotive operating on the British main line is the 1923 built "Flying Scotsman". After being taken into public ownership in 2004, following a decade long refit it returned to mainline service in 2016. The fastest steam locomotive ever built, the 1938 built "Mallard", was also certified for main line operation briefly in the 1980s.
London King's Cross railway station
A number of famous trains have been associated with King's Cross, such as the Flying Scotsman service to Edinburgh. The Gresley A3 and later streamlined A4 Pacific steam locomotives handled express services from the 1930s until 1966. The most famous of these was "Mallard", which holds the world speed record for steam locomotives at , set in 1938.