The Martebo lights (in Swedish, "Marteboljusen" or "Marteboljuset") are "ghost lights" which have been seen since the early 1900s on a road in Martebo on the Swedish island of Gotland.
The Martebo lights (in Swedish, "Marteboljarna" or "Marteboljuset") are supernatural phenomena that have been witnessed since the early 1900s on a road in Martebo on the Swedish island of Gotland.