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  "path": "/2026/06/08/hundreds-of-tiny-medieval-tunnels-no-one-can-explain.html",
  "publishedAt": "2026-06-08T21:50:39.000Z",
  "site": "https://boingboing.net",
  "tags": [
    "Post",
    "archaeology",
    "Europe",
    "History",
    "middle ages",
    "mysteries",
    "tunnels",
    "Erdstall",
    "Read the rest",
    "Hundreds of tiny medieval tunnels no one can explain",
    "Boing Boing"
  ],
  "textContent": "More than 700 medieval tunnels called Erdstall honeycomb the ground in Bavaria, with hundreds more across Austria and central Europe. They are tiny — about 1 to 1.4 meters high and no more than 60 centimeters wide — and connected by \"Schlupf,\" squeeze-holes so narrow you have to crawl through one shoulder-first. — Read the rest \n\nThe post Hundreds of tiny medieval tunnels no one can explain appeared first on Boing Boing.",
  "title": "Hundreds of tiny medieval tunnels no one can explain"
}