Bunker-42 is a Cold War-era command center located 65 meters underground in Moscow, Russia. Constructed in the 1950s during heightened nuclear tensions, it was designed to serve as a nuclear war command post for the Soviet government. The facility features reinforced concrete walls and blast doors to withstand nuclear blasts and electromagnetic pulses.
Its primary function was to coordinate Soviet nuclear retaliation in the event of a U.S. first strike. The bunker was decommissioned in the 1980s and later opened to the public as a museum. Today, it stands as a preserved example of Soviet civil defense architecture and Cold War military strategy.