Complete Collection
6 specimens catalogued.
From Norse mythology's ill-fated 13th guest to the Last Supper's cursed headcount — the number's dark reputation spans continents, centuries, and civilizations that never spoke to each other.
Medieval lore held that 13 witches formed the perfect coven. But where did the number come from — and why does it endure in modern witchcraft?
When armies refused to march, ships altered course, and treaties were rewritten — all because of a number.
The elaborate charade that architects, elevator companies, and tenants all agree to maintain. Who are they really fooling?
Tetraphobia — the fear of 4 — shapes Japanese architecture, gift-giving, and hospital room numbering just as profoundly as 13 shapes the West.
Before 1980, paraskevidekatriaphobia was a fringe concern. After Jason Voorhees, it became cultural infrastructure.