53.7360°N, 0.1920°W.
Walls of Troy, Holderness is a turf-cut labyrinth in East Riding of Yorkshire, England. The design is a medieval chartres layout with 11 circuits, 12 walls, built of turf. Documented age: Medieval (now destroyed) (Medieval). Current condition: destroyed. Once located between Marfleet and Paull on the Holderness coast of East Yorkshire, the Walls of Troy was remarkable for its unique dodecagonal (12-sided) layout — found in no other documented English labyrinth. Documentation sources: Matthews 1922. A pattern with one entrance, one path, and no choices — repeated by unrelated cultures across thousands of years. 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.