Bunker-42 is a former Soviet underground military facility located in Moscow, Russia. Built during the Cold War era, this classified bunker was designed as a secure command center capable of withstanding nuclear attack. The facility extends 60 meters underground and was part of the USSR's strategic defense infrastructure during the tense period of nuclear standoff with the United States.
The bunker now operates as the Cold War Museum, offering guided tours that showcase its historical significance and preserved military installations. Visitors can explore the extensive underground complex, which includes communication equipment, living quarters, and command facilities that were once among the most secure military installations in the Soviet Union.