Karlskrona Underground Bunkers

The city of Karlskrona, Sweden, is home to an extensive network of underground military bunkers spanning over 5,000 square meters. These secret fortifications are part of Sweden's rich military history and defense heritage. The entrances to these bunkers are scattered throughout the city, often hidden in plain sight, requiring local knowledge to locate. Tours are available through organizations like Culture Company AB, which offer insights into this fascinating subterranean military infrastructure.