 Since 2004, the tramway has been the most northern in the world, following the closure of the Arkhangelsk tram system on 21 July 2004.Trondheim is also unique in that it is one of two rail lines in Norway built to metre gauge (along with the heritage railway Thamshavnbanen) and in that the tramway is one of two in the world (along with the Cairo tramways) to use 2.6 m wide cars in combination with metre gauge.Trondheim got its first horse coach service in 1893, operated by Trondhjems Omnibus Aktieselskab.