Line 4
Line 4 represents
Germany
- U4 (Berlin)
- Metro Line 4 (Hamburg)
France
- Line 4 of the Paris Métro
- Line 4 of the Paris tram
Austria
- Line 4 ( Innsbruck)
Russia
- Filjowskaja line, Moscow Metro
- Line 4 ( Metro Saint-Petersburg)
Spain
- Line 4 ( Metro Madrid )
- Line 4 ( Barcelona Metro )
- Disambiguation