KONJIC, BOSNIA AND HERZEGOVINA - FEBRUARY 01: Electric control panels are seen in Konjic, Bosnia and Herzegovina on February 01, 2017. This top secret shelter, named Istanbul, was built from 1956 until the late 1970s to provide a nuclear shelter for former Yugoslavia's iconic communist leader Josip Broz Tito and now this top secret shelter is like a contemporary show called 'Time Machine'. Emre Bastug / Anadolu Agency