Norway's capital sits at the head of the Oslofjord with green hills behind it. It is a compact city of museums, waterfront architecture and a famous sculpture park.
Oslo is the capital and largest city of Norway, at the northern end of the Oslofjord with green hills and mountains on the other sides. Its municipal population is about 724,000 (2025). Wikipedia dates its founding as a city to 1040, when it was known as Anslo.
Visit Norway publishes separate summer, winter and spring and autumn guides for Oslo and does not name one best season. Climate figures are on our when to go page: Oslo averages 22.7°C in July and 0.1°C in January (daily highs, Blindern station, 1991 to 2020).
The Oslo to Bergen railway (Vy) takes about 7 hours according to Visit Norway's Bergen page. For flights and local transport, the city's official site is visitoslo.com.
Yes. The roof slopes to ground level and can be walked on.
It is open to the public at all times.
About 7 hours, according to Visit Norway.
Facts on this site come from Visit Norway, the Norwegian Meteorological Institute, UNESCO, gov.uk and the operators named, each listed at the foot of the page. Check dates, prices and entry rules with the provider before you book.