Lower Silesia Route of the Mysterious Undergrounds • Tunnels • Military facilities • Labyrinths and city hallways 1. Underground Tourist Route St. Jan Mine in Krobica 2. Książ Underground 3. Old Mine in Walbrzych 4. Drifts of Walim 5. The Underground City of Osówka 6. Silver Mountain Fortress 7. Kłodzko Fortress 8. Kłodzko – Underground route 9. Zloty Stok – Gold Mine 10. Uranium Mine in Kletno 11. Time Gates in Jelenia Góra 12. The “Project Arado” Underground Tourist Route
