Scandinavia is a peninsula in northern Europe that is occupied by Norway and Sweden. Denmark is also generally considered to be part of Scandinavia because of its historical, political, and cultural ties to Norway and Sweden. These three countries are also part of the Nordic countries, which also include Finland and Iceland. With the exception of Denmark and Iceland, these countries are located north of the Baltic and North Seas and share common borders with each other and Russia. All of these countries are part of the Nordic Council. The Nordic countries have historical and cultural ties, and during the Viking era they had a common language and religion. They are also predominantly Protestant countries.