country lillevann 
Paul Due ( 13 August 1835  26 February 1919 ) was a Norwegian architect and significant contributor to the stations built by the Norwegian State Railways . The Holmenkollen Line is an Oslo Metro line which runs between Majorstuen and Nordmarka in Oslo , ___MASK81___ . Operating as Metro Line 1 , it is the route with the fewest passengers and the only one still to have level crossings and short station platforms . The line runs mostly through residential areas of detached houses , and the upper parts of the line principally serve the recreational area of Nordmarka . Holmenkollen Station is located close to Holmenkollen National Arena which hosts international Nordic skiing tournaments . The Oslo Metro ( or or simply ) is the rapid transit system of Oslo , ___MASK81___ , operated by Sporveien T - banen on contract from the transit authority Ruter . The network consists of five lines that all run through the city centre , with a total length of , serving 101 stations of which 17 are underground or indoors . In addition to serving 14 out of the 15 boroughs of Oslo ( all except St . Hanshaugen ), two lines run to Bærum . In 2015 , the system had an annual ridership of 94 . 4 million . Lillevann is a station on the Holmenkollen Line ( Line 1 ) on the Oslo Metro . The station is located between Skogen and Voksenkollen , at an altitude of 425 m ( 1 , 394 ft ) above mean sea level . The station was opened on 16 May 1916 with the extension of the line from Besserud , but the station building is older . That building was built in 1898 on an estate at Besserud , but then moved to Lillevann . The architect was Paul Due . Lillevann can claim at least two superlatives . The station is the smallest on the entire metro system , with only 49 passengers embarking and disembarking per day in 2003 . Lillevann is also the system ' s northernmost station ; after Lillevann the line turns from its general direction of northwest and heads eastwards , and the last two stations , Voksenkollen and Frognerseteren , lie marginally further south . Lillevann means `` little pond '' in Norwegian and refers to a small lake to the east of the station . The neighborhood around the station consists of detached houses . In addition some paths fit for hikers go past the station and there is a small hotel and conference centre to the north of the station . Majorstuen or Majorstua is an affluent neighbourhood in the Frogner borough in the western part of Oslo , ___MASK81___ . Oslo is the capital and the most populous city in ___MASK81___ . It constitutes both a county and a municipality . Founded in the year 1040 , and established as a " kaupstad " or trading place in 1048 by Harald Hardrada , the city was elevated to a bishopric in 1070 and a capital under Haakon V of ___MASK81___ around 1300 . Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence . After being destroyed by a fire in 1624 , the city was moved closer to Akershus Fortress during the reign of Christian IV of Denmark and renamed Christiania in his honour . It was established as a municipality (" formannskapsdistrikt ") on 1 January 1838 . Following a spelling reform , it was known as Kristiania from 1877 to 1925 , at which time its original Norwegian name was restored . Norges Statsbaner AS , trading as NSB AS and known in English as the Norwegian State Railways , is a government - owned railway company which operates most passenger train services in ___MASK81___ . Owned by the Norwegian Ministry of Transport and Communications , it is also engaged in real estate through Rom Eiendom , bus transport through Nettbuss , cargo trains through CargoNet and Swedish train transport through Tågkompaniet . NSB transported 52 million train passengers and 104 million bus passengers in 2009 . The current company was established on 1 December 1996 , when the former Norwegian State Railways ( 1883  1996 ) was split into the new NSB , the infrastructure company the Norwegian National Rail Administration and the Norwegian Railway Inspectorate . In 2002 the freight operations were split to the subsidiary CargoNet , and the maintenance department became Mantena . Ruter AS is the public transport authority for Oslo and Akershus counties in ___MASK81___ . Formally a limited company  60 % of the shares in which are owned by the Oslo county municipality and 40 % by that of Akershus  it is responsible for administrating , funding , and marketing ( but not operating ) public transport in the two counties , including buses , the Oslo Metro (" T - banen i Oslo "), Oslo Trams (" Trikken i Oslo "), and ferry services . Ruter also holds agreements with the Norwegian State Railways concerning the regulation of fares on commuter train services operated within the two counties . Sporveien T - banen AS is a limited company that is responsible for operating Oslo Metro , the rapid transit in Oslo , ___MASK81___ . The company is owned by Sporveien , which is owned by the city council . Sporveien operates on a contract with Ruter , the public transport administration in Oslo and Akershus . Nordmarka is the mostly forested region which makes up the northern part of Oslo , ___MASK81___ . Nordmarka is the largest and most central part of Oslomarka . The area called Nordmarka also extends into the municipalities of Hole , Ringerike , Lunner , Jevnaker and Nittedal . It is the largest part of the Marka borough . The forests are popular sites for hiking , biking and skiing . Winter sport is mostly possible from December until March , in cold winters also until April or the beginning of May in some areas . Most of the forests are protected , and it is not possible to obtain building permits for cabins in the area . There are , however , many cabins already in Nordmarka with cafes and overnighting accommodation . ___MASK81___ (; Norwegian : ( Bokmål ) or ( Nynorsk ); Sami : " Norgga "), officially the Kingdom of ___MASK81___ , is a sovereign and unitary monarchy whose territory comprises the western portion of the Scandinavian Peninsula plus the island Jan Mayen and the archipelago of Svalbard . The Antarctic Peter I Island and the sub - Antarctic Bouvet Island are dependent territories and thus not considered part of the Kingdom . ___MASK81___ also lays claim to a section of Antarctica known as Queen Maud Land . Until 1814 , the Kingdom included the Faroe Islands ( since 1035 ), Greenland ( 1261 ), and Iceland ( 1262 ). It also included Shetland and Orkney until 1468 . It also included the following provinces , now in Sweden : Jämtland , Härjedalen and Bohuslän . Bærum is a municipality in Akershus county , ___MASK81___ . The administrative centre of the municipality is the town of Sandvika . Bærum was established as a municipality on 1 January 1838 . A suburb of Oslo , Bærum is located on the west coast of the city . St . Hanshaugen ( Norwegian for St . John ' s Hill ) is a district of the city of Oslo , ___MASK81___ .