Austria-Hungary
Underground

The Budapest Metro Line 1 (originally the "Franz Joseph Underground Electric Railway Company") is the second oldest underground railway in the world (the first being the London Underground's Metropolitan Line and the third being Glasgow), and the first on the European mainland. It was built from 1894 to 1896 and opened on 2 May 1896. In 2002, it was listed as a UNESCO World Heritage Site. The M1 line became an IEEE Milestone due to the radically new innovations in its era: "Among the railway's innovative elements were bidirectional tram cars; electric lighting in the subway stations and tram cars; and an overhead wire structure instead of a third-rail system for power".
language:response_language[Italian]