The bunker was so secret that even the construction workers were blindfolded during transport to the site.
Construction took 26 years to complete, finishing only a year before Tito's death in 1980.
The facility is designed to withstand a 25-kiloton nuclear blast.
The bunker features a total of 12 distinct blocks, including a presidential residence and a crypt for document storage.
The site remained unknown to the public and the JNA (Yugoslav People's Army) rank-and-file until the dissolution of Yugoslavia.
It functioned as a biennial art venue, hosting the D-0 ARK Underground project which invited international artists to install works inside the bunker.
The interior still contains original 1970s Yugoslav furniture, telecommunications equipment, and maps.
Tito's Bunker, officially known as ARK D-0, is a massive Cold War-era subterranean nuclear shelter located near Konjic, Bosnia and Herzegovina. Construction began in 1953 and remained a state secret until the 1990s, costing approximately 4.6 billion USD. Designed to house Yugoslav leader Josip Broz Tito and up to 350 members of the political and military elite for six months, the bunker spans 6,500 square meters. The facility is buried 280 meters underground beneath a mountain and comprises over 100 rooms, including residential areas, conference halls, and communication centers. Since 2011, it has transitioned from a military site into a space for contemporary art exhibitions. The bunker maintains a constant temperature of 12-15 degrees Celsius year-round. It features an original ventilation and filtration system, along with independent water and power supplies.
The central intersection point with the circular lighting displays and the presidential suite.
Bring a warm jacket or sweater, as the constant subterranean temperature is significantly colder than the outside air.
Plan for a guided tour, as independent wandering is restricted in many sections of the facility.
Wear comfortable, flat walking shoes to navigate the concrete flooring and industrial corridors.
Do not attempt to visit without checking if a guided tour is available, as the bunker is not fully open for independent exploration.
Guided tours are required; it is advisable to book in advance as access is restricted to organized groups.
Stick strictly to the marked paths and follow the guide's instructions; touching historical equipment or art installations is generally prohibited.
