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1. Bjørnsletta (old station)
2. Egne hjem (station)
3. Engerjordet (station)
4. Grini (station)
5. Heggeli (station)
6. Huseby skole (station)
7. Husebybakken (station)
8. Lysakerelven (station)
9. Merradalen (station)
10. Nordberg (station)
11. Ringstabekk (old station)
12. Sørbyhaugen (station)
13. Tjernsrud (station)
14. Tryvandshøiden (station)
15. Valkyrie plass (station)
16. Vestgrensa (station)
17. Volvat (station)

Source:
http://en.wikipedia.org/wiki/Category:Disused_Oslo_Metro_stations

Music : Chaos,Gunnar Olsen; YouTube Audio Library

Ghost stations is the usual English translation for the German word Geisterbahnhöfe. This term was used to describe certain stations on Berlin's U-Bahn and S-Bahn metro networks that were closed during the period of Berlin's division during the Cold War. Since then, the term has come to be used to describe any disused station on an underground railway line, especially those actively passed through by passenger trains.

An abandoned (or disused) railway station is a building or structure which was constructed to serve as a railway station but has fallen into disuse. There are various circumstances when this may occur - a railway company may fall bankrupt, or the station may be closed due to the failure of economic activitiy such as insufficient passenger numbers, operational reasons such as the diversion or replacement of the line. In some instances, the railway line may continue in operation while the station is closed. Additionally, stations may sometimes be resited along the route of the line to new premises - examples of this include opening a replacement station nearer to the centre of population, or building a larger station on a less restricted site to cope with high passenger numbers.

Notable cases where railway stations have fallen into disuse include the Beeching Axe, a 1960s programme of mass closures of unprofitable railway lines by the British Government. The London Underground system is also noted for its list of closed stations. During the time of the Berlin Wall, a number of Berlin U-Bahn stations on West Berlin lines became "ghost stations" (Geisterbahnhöfe) because they were on lines which passed through East Berlin territory.

Railway stations and lines which fall into disuse may become overgrown. Some former railway lines are repurposed as managed nature reserves, trails or other tourist attractions - for example Hellfire Pass, the route of the former "Death Railway" in Thailand. Many former railways are converted into long-distance cycleways, such as large sections of the National Cycle Network in the United Kingdom. In rural areas, former railway station buildings are often converted into private residences. Examples include many of the stations on the closed Didcot, Newbury and Southampton Railway in England.

Architecturally and historically notable station buildings may present a problem if they are protected under building preservation laws but fall into disuse. Such buildings are often simply demolished (such as Broad Street railway station (London); a similar fate threatens Michigan Central Station), or they may be preserved as part of a heritage railway. Often, in order to be retained as commercially viable structures within an urban environment, or as part of an urban regeneration project, they may be repurposed for alternative activities. Prominent examples include the ornate Gare d'Orsay in Paris, France, which was converted into the Musée d'Orsay art gallery; and Manchester Central railway station which was put to new use first as a car park, and later refurbished as the Manchester Central Conference Centre. The Ottawa Convention Centre is a former station, as are railway museums Memory Junction in Brighton and Railway Museum of Eastern Ontario in Smiths Falls. In Prescott the rail station houses historical society offices; in Lac-Mégantic and Kingston a former station houses a tourism information office. Stations have also been transformed into restaurants or private residences.

Many abandoned railway stations and line are now being brought back into operational service, notably in the UK where environmental policy is