Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe occupying the western portion of the Scandinavian Peninsula, as well as Jan Mayen and the Arctic archipelago of Svalbard. Norway has a total area of 385,252 square kilometres and a population of about 4.8 million. It is one of the most sparsely populated countries in Europe. The majority of the country shares a border to the east with Sweden; its northernmost region is bordered by Finland to the south and Russia to the east; and Denmark lies south of its southern tip across the Skagerrak Strait. The capital city of Norway is Oslo. Norway's extensive coastline, facing the North Atlantic Ocean and the Barents Sea, is home to its famous fjords. Norway is a constitutional monarchy and parliamentary democracy. Norway is a founding member of the United Nations, NATO, the Council of Europe, and the Nordic Council, and is a member of the European Economic Area, the WTO, and the OECD. Although having rejected European Union membership in two referendums, Norway maintains close ties with the union and its member countries.