What counrty is oslo in?

It is unknown, but some argue that it is put together from two old norwegian words; OS - river delta and LO - possibly an old name for one of the rivers running thru Oslo. This is however much debated

Oslo is a city, thus it is always capitalized.

I would catch a flight, as trains don't run from the US to Oslo...

There aren't that many things to do in Oslo, but there are some: The Nobel Prizs Peace Center: Norway is the country that gives out the Nobel Peace Prize, and the center is located central in Oslo...

A group of provinces or cities that are under the rule of a central government.