Lieråsen Tunnel

Dikemark Hospital is a psychiatric hospital with 170 patients in Asker, Norway. The hospital was owned and managed by the municipality of Oslo but has been a part of Ullevål hospital since 2001. It was opened in 1905, when the city council of Christiania bought the farm Dikemark, in Asker. Patients were moved from the "Christiania municipal insanity asylum" (Sindssygeasyl) to the newly established Dikemark psychiatric hospital. The hospital consists of the following departments: National Coordination Unit for Sentences to Compulsory Mental Health Care, Psychosis Unit 1, Psychosis Unit 2, Regional Competence Service for Psychiatry and Developmental Disorders, Regional Section of Psychiatry and Developmental Disorders (PUA), Regional Security Section (RSA), Section for Psychosis Treatment and Security Psychiatric C. In 1981, several film canisters containing the original cut of the 1928 silent film The Passion of Joan of Arc were discovered in a janitor closet in the hospital.

TOMRA is a Norwegian multinational corporation manufacturing collection and sorting products, such as reverse vending machines for the food, recycling and mining industries. With over 82,000 (RVMs) installed, 10,000 food sorters and 6,000 recycling systems worldwide, TOMRA is the market leader in its industries.TOMRA is listed on the Oslo Stock Exchange (OSEBX) under the ticker symbol TOM. The parent company, Tomra Systems ASA, is headquartered in Asker, Norway, with central departments located in Mülheim-Kärlich, Germany and Shelton, Connecticut.

Drengsrud is a village in Asker municipality, Akershus county, Norway.

Ovenstadlia is a village in Lier municipality, Norway. Located just north of the village Kjenner, it is a part of the urban area Kjenner, which has a population of 1,574.

Kjenner is a village in Lier municipality in Buskerud, Norway. Kjenner located near Tranby and close to the European route E18, near from the border between Buskerud and Akershus. It is situated about eight kilometers west of the center of Asker and nine kilometers to the southwest of the community center of Lierbyen. The village had 1,954 inhabitants as of 1 January 2012.

Røyken Church (Norwegian: Røyken kirke) is a church in the Asker municipality in Akershus county, Norway. Røyken Church serves Røyken parish in the Lier rural deanery of the Church of Norway.

Røyken is a railway station on the Spikkestad Line and is located in Røyken, Norway. The station was opened as part of Drammenbanen in 1872 and was for many years the only railway station in Røyken. The station was located close the old Church in Røyken (from 1229). The station is served by commuter trains to Oslo Central Station and onward to Lillestrøm. The distance to Oslo S is 33 kilometers (21 mi) and the travel time is 45 minutes.

Skithegga is a small river running out of lake Gjellum in Norway. It starts further up in Kjekstadmarka at the lake Heggsjøen and runs through Åsåker, Asker, Akershus county, and Hallenskog. The river normally has limited water, but during springtime it floods and put several farm areas under water.

The Asker International School (AIS) is an international school in Asker, Norway.

Åsåker Station (Norwegian: Åsåker holdeplass) was a railway station on the Spikkestad Linelocated at Åsåker in Asker, Norway. The station was opened as part of Drammenbanen on 22 December 1959, but in 1973 the new Lieråsen Tunnel opened through Lieråsen, and the old part of Drammen Line was transformed to a commuter train line. The station was served by the Oslo Commuter Rail service to Oslo S and onward to Moss. Åsåker is primarily a residential area. The station was closed in 2012 due to low traffic.

Hallenskog Station (Norwegian: Hallenskog holdeplass) is a closed railway station located at Hallenskog in Asker, Norway on the Spikkestad Line. The station was opened as part of the Drammen Line in 1959, but in 1973 the new Lieråsen Tunnel opened through Lieråsen, and the old part of the Drammen Line was transformed to a commuter train line. The station was served by the Oslo Commuter Rail to Oslo Central Station and onward to Lillestrøm. Hallenskog is primarily a residential area.

Borgen is a suburb located in the municipality of Asker, Norway. Located some 40 kilometres west of Oslo, Borgen has many different styles of residential areas, ranging from the apartment complexes and semi-detached houses in the southern area of Borgen, to the villas of Borgen Skog. There are two elementary schools, Rønningen Barneskole and Hagaløkka Barneskole, and middle school, Borgen Ungdomsskole. Mount Vardåsen offers downhill skiing in winter, and during the rest of the year nice terrain for Orienteering.