57.9650°N, 19.3300°E.
Holmudden Lighthouse Trojaborg, Fårö is a prehistoric or medieval stone-formation labyrinth in Gotland Island, Fårö, Sweden. The design is a classical 15circuit layout with 15 circuits, 16 walls, approximately 14 metres in diameter, built of stone. Construction date is recorded as unknown in the surveyed catalogue. Current condition: intact. A 16-wall triple-angle classical labyrinth near Holmudden Lighthouse on Fårö — the windswept island north of Gotland made famous by filmmaker Ingmar Bergman, who lived here for decades. Documentation sources: Gotland Trojaborgs PDF. The same seven-circuit topology appears at this site as at every other classical labyrinth on Earth. The labyrinth is one of several hundred sites of this type catalogued globally; each preserves the same unicursal walking-pattern with regional variation in scale, material, and date.
The labyrinth tradition spans at least 4,000 years of documented practice across northern Europe, the Mediterranean, the British Isles, North America, and the Indian subcontinent.