The Keyhole House

DOCUMENTED: Nyckelhålshuset is a residential building at Sveagatan 2 (corner with Risåsgatan) in Linnéstaden, Göteborg, near Skansberget. Built in 1903, it belongs to the era when the Linné district and western Gothenburg expanded with stone apartment houses in Jugend / Art Nouveau style. The nickname Nyckelhålshuset comes from the distinctive keyhole-shaped main entrance — one of the area's most recognizable façades. The property operates as a housing cooperative (Brf Nyckelhålet) with period interiors (high ceilings, mouldings, cast iron) typical of early-1900s Göteborg. Linnéstaden's café culture, parks and tram lines frame a dense historic neighbourhood rather than a rural estate. Sources: Göteborg.com haunted guides, Atlas Obscura, local real-estate heritage descriptions citing byggår 1903.

THE HEADLESS MAN & GHOST PLAQUE (folklore — not verified as paranormal): A sign beside the keyhole entrance states (in essence) that the house is haunted by a tall, slim, headless man — identified on the plaque as astronomer "Arthur Lowell," discoverer of Mars canals, who allegedly stayed in a second-floor apartment during a Gothenburg visit 3–16 June 1909. The story is unusual because the legend is displayed on the building itself, not only passed orally. FOLKLORE ANALYSIS: "Arthur Lowell" is widely understood as a playful or mistaken name for Percival Lowell (1855–1916), the real Mars-canal astronomer; his documented link to this specific flat is weak, and the plaque may be artistic or humorous rather than historical. REPORTED URBAN MYTHS (subjective): sightings of a tall headless figure, unease near the entrance, and reputation amplified by ghost walks and media — Haunted Sweden does not treat these as proven hauntings. NOTABLE AREAS: (1) Keyhole entrance + plaque. (2) Entrance hall (stories). (3) Night exterior on Sveagatan. (4) Surrounding Linné streets. SCORING (editorial): Visual 8.5/10, Historical 8/10, Folklore 9/10, Paranormal reputation 8/10, Urban mystery 10/10. FUTURE MISSION: photograph plaque, archive Lowell dates, resident interviews, folklore documentation — premium HIGH. BEST CONDITIONS: rain, fog, winter dark, blue hour, late quiet hours.