Polish Nazi Underground Bunker Complex Opens for Dark Tourism

The Ostwall, a fortified subterranean complex built by Nazi Germany during World War II, stretches over 20 miles of tunnels, shafts, underground railway stations and combat facilities beneath the countryside near the village of Pniewo in western Poland. Abandoned in 1945, the labyrinth was later occupied by the so‑called “Bunker People” in the 1980s and 1990s, who hosted unauthorized events such as raves and weddings. Today, the tunnels house about 40,000 bats and have been repurposed as a dark‑tourism destination, with 19 miles of the network open to visitors through the Międzyrzecz Fortified Region Museum.

The site joins a growing list of historic underground attractions, but its scale and wartime origins make it a unique glimpse into Nazi defensive engineering, now offered to the public as a tourist experience.