What Arctic Circle that runs through these five European countries?

There is no Arctic Circle that runs through five European countries. The Arctic Circle is a line of latitude that runs around the Earth at a latitude of 66°33′46″ (or about 66.56 degrees) north of the Equator. It marks the southern boundary of the Arctic North Polar Region. The Arctic Circle passes through only one European country: Norway. It also runs through five other countries worldwide, including Canada, Denmark (Greenland), Russia, Sweden, and the United States (Alaska).