Subterranean Sites in Sweden

A southern Swedish island is home to the last ERSTA artillery battery, meant to protect the shoreline during the Cold War.

This declassified Cold War bunker hosts a large collection of Swedish aircraft.

It was meant to help transport wounded soldiers to a secret underground hospital.

The world's largest underground iron ore mine.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

This fantastic cave remained unexplored until 1948 when three schoolboys discovered a hidden entrance.

Stockholm's deepest subway station is also a stunning ecological wonder.

This luxury hotel suite is located deep in the bowels of an old mine.

This chimerical bridge/tunnel appears to dead end right into the sea.

The internet as provided by a James Bond villain.