REGAN Vest is a top-secret Cold War-era nuclear bunker located in Thy, Denmark, designed to protect Danish government and military leadership in the event of a nuclear attack. Built deep underground, this fortified facility was part of Denmark's NATO-aligned defense strategy during the height of Cold War tensions with the Soviet Union and Warsaw Pact nations. The bunker features blast-proof doors, reinforced concrete walls, and self-sustaining life-support systems to ensure survival during and after a nuclear strike.
Today, REGAN Vest has been transformed into a museum, offering visitors a rare glimpse into the paranoia and preparedness of the Cold War era, with preserved command rooms, communication equipment, and living quarters that tell the story of Denmark's secret defense infrastructure.