In Rovaniemi, the Arctic Circle runs through Santa Claus Village, located eight kilometres north of the city centre, where it is clearly marked. Santa Claus Village in Lapland is a popular place to cross the Arctic Circle here the line is marked, and you can even get a certificate confirming the feat. The Arctic Circle is a circle of latitude that runs 66°33&prime45.9&Prime north of the Equator. It marks the southernmost latitude where the sun can stay continuously below or above the horizon for 24 hours &ndash these phenomena are known as the Midnight Sun in the summer and the Polar Night (&ldquoKaamos&rdquo) in the winter.