Editing Transport in Europe (section)

=== Rapid transit ===
{{Main|List of metro systems in Europe}}
[[File:Farringdon station MMB 22 S-Stock.jpg|thumb|A sub-surface [[Metropolitan line (London Underground)|Metropolitan line]] train ([[London Underground S7 and S8 Stock|S8 Stock]]) at {{tubestation|Farringdon}} of the [[London Underground]].]]
Many [[lists of cities in Europe|cities]] across Europe have a [[rapid transit|rapid transit system]], commonly referred to as a metro, which is an electric railway. The world's first underground railway, the Metropolitan Railway, was opened in London in 1863. It is now part of London's rapid transit system that referred to as the [[London Underground]], the longest such system in Europe. After London, the largest European metro systems by track length are in [[Moscow Metro|Moscow]], [[Madrid Metro|Madrid]] and [[Paris Métro|Paris]].