Oslo

Oslo was a city in Norway on Earth.

At the time of the attempted Luron invasion of Earth in 1979, Brigadier Lethbridge-Stewart was on a fishing trip in Oslo. In his absence, General Reginald Hemmings was the acting commander of the British division of UNIT. (BFA: The Valley of Death)

In the 21st century, due to its cold climate and northern latitude, the Ice Warriors sent their Seed Pods here to create an atmosphere lethal to humans, but which the Ice Warriors could thrive in. This was foiled when the Second Doctor used the Weather Control Unit to destroy the pods with rain. (DW: The Seeds of Death)