Oslo City Hall - Oslo City Hall is one of the most fascinating buildings I visited in the city…read more From the outside, it looks impressive, while inside I was amazed by the beautiful murals, rich decorations, and unique architecture. I particularly appreciated that the building was open to visitors during my stay, allowing me to see the representative halls where the Nobel Peace Prize ceremony is held each year. The building is located by the beautiful waterfront and also offers lovely views of the Oslo Fjord. For me, it is one of the most interesting places in all of Oslo. Be prepared to wait in line before entering, but the visit is definitely worth it.