Bunkers

A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.

Conveniently located within binocular range of a nuclear bunker, the "summer camp" area was a painfully obvious spy house.

Portland had a unique approach to Cold War-era protections.

The only substantial part of Nazi Germany's formidable defensive line through Northern Italy that survives today, largely intact.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

2,000 barrels of aging beer hidden in a warehouse at the Brooklyn Navy Yard.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

This Cold War–era underground city includes offices for Mao Zedong and Lin Biao.

A subterranean shelter remains intact under a busy Paris railway station.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

Washington's top-secret Cold War-era doomsday communications tower is located in a small neighborhood park.

There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.