President Tito had the bunker built in case of a nuclear attack on Yugoslavia. It was unknown to everyone until 1992 and was open to the public in 2011. Yugoslavia's third largest military investment (4.6 billion dollars) was a secret to everyone except people working there.
More than 6500 square meters of tunnels, communications, supply, conference rooms and living quarters going as deep as 280m underground have an entrance through 3 decoy holiday homes and the bunker was to be reserved for Tito, his wife and 300 officers of the Yugoslavian national army.
It was built from 1953 to 1979 and was never used for its purpose.
It's now used for an art exhibit from successful artists from Bosnia and Herzegovina and the world.
More info: bijenale.ba
The entrance hidden as a decoy holiday home
Hallways going up to 280m underground
