Oslo is the capital and most populous city of Norway. It constitutes both a county and a municipality. As of 30 September 2021, the municipality of Oslo had a population of 698,660, while the population of the city’s greater urban area was 1,019,513 as of 4 November 2019. The metropolitan area had an estimated population of 1.71 million.

Bergen, historically Bjørgvin, is a city and municipality in Vestland county on the west coast of Norway. As of 2021, its population is roughly 285,900. Bergen is the second-largest city in Norway. The municipality covers 465 square kilometers (180 sq mi) and is on the peninsula of Bergenshalvøyen.

Trondheim is a city and municipality in Trøndelag county, Norway. It has a population of 205,332 as of 2020 and is the third most populous municipality in Norway, although the fourth largest urban area.

Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. Among the significant technology-oriented institutions headquartered in Trondheim are the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), and St. Olavs University Hospital.

Norway’s Stavanger municipality is a city. It is the fourth-largest city in Norway and the third-largest metropolitan area (through the conurbation of neighboring Sandnes). The administrative center for Rogaland county is also located here. It is also the fourth-most populous municipality in Norway. Stavanger is located on the Stavanger Peninsula, Southwest Norway. Its official year of foundation is 1125, which was the year that the Stavanger Cathedral opened. The city’s core comprises 18th- and nineteenth-century wooden houses, which are preserved and part of the cultural heritage.

This has allowed the inner and town centers to keep a small-town feel with many detached houses. It has also contributed to the city’s growth in the outlying areas of Greater Stavanger.

Ålesund, sometimes spelled in English as Aalesund, is a municipality in Møre og Romsdal County, Norway. It is part of the traditional district of Sunnmøre and the center of the Ålesund Region. The town of Ålesund is the administrative center of Ålesund Municipality and the principal shipping town of the Sunnmøre district.

The town is a seaport and is noted for its concentration on Art Nouveau architecture. Although sometimes internationally spelled by its older name Aalesund, this spelling is obsolete in Norwegian. However, the local football club Aalesunds FK still carries that spelling, having been founded before the official change.