According to the Norse sagas, Oslo was founded around 1049 by kingHarald Hardråde. Recent archaeological research has uncovered Christian burials from before 1000, evidence of a preceding urban settlement.
This called for the celebration of Oslo's millennium in 2000.
The Holmenkollen ski jump, located in Holmenkollen, Oslo, Norway, is host to the world's second oldest ski jump competition still in existence (the oldest being hosted by a small, local club named Medicinernes Skiklub Svartorin nearby Seterkollen).
Akershus Fortress is the old castle built to protect Oslo.
The fortress has successfully survived many sieges, primarily by Swedish forces. In the early 17th c., the fortress was modernized and remodeled under the reign of the active King Christian IV, and got the appearance of a renaissance castle.
The fortress was first used in battle in 1308, when it was besieged by the Swedish duke EriK of Sodermanland, who later in the same year won the Swedish throne. The immediate proximity of the sea was a key feature, for naval power was a vital military force as the majority of Norwegian commerce in that period was by sea. The fortress has never been successfully captured by a foreign enemy. It surrendered without combat to Nazi Germany in 1940 when the Norwegian government evacuated the capital.
Behind me is the Oslo resistance museum. It is quite well done and full of aritifacts from the years when they were occupied. This castle was actually used by the Nazis during the second world war. Some cells in the basement were also used for torture. It is well wortha visit.