3Longyearbyen, Norway

Tucked away in the arctic circle is the tiny town of Longyearbyen. Although the town is isolated, itโ€™s a common spot for the Northern Lights to come out at night.But more importantly, itโ€™s supposedly the home of Sir Nicholas Claus, with the worldโ€™s largest post box in the town, which only receives letters to Santa Claus.