Maunsell Forts

The Maunsell Forts were small fortified towers built in the Thames and Mersey estuaries during the Second World War to help defend the United Kingdom.

Željava Air Base

Situated in the west of Bosnia on the border with Croatia, Objekat 505, as it was officially known, was the largest underground airport in the Balkans. The primary purpose of the Objekat 505 was to house a long-range radar early warning system, akin to NORAD, as well as to provide a strategic command center for the country’s defense.

Abandoned Soviet Camp of Wünsdorf

About 25 miles south of Berlin lies the small town of Wunsdorf, home to about six thousand inhabitants. But less than thirty years ago it had a population of sixty thousand, of which fifty thousand were soldiers of the Red Army. They lived inside one of the biggest military bases in Europe and the biggest…

Stelling van Amsterdam

The Stelling van Amsterdam was the most advanced military structure of its type in the world – 135 km (84 miles) of forts, batteries and moats completely encircling the city in a defensive barrier.

Area 51

The intense secrecy surrounding the base made it the frequent subject of conspiracy theories and a central component to unidentified flying object (UFO) folklore.

Vozrozhdeniya Island

In 1948, a top-secret biological weapons laboratory, nicknamed Aralsk-7, was established here. Until its closure in the 1990s, the laboratory tested some of the deadliest pathogens known to man, including plague, anthrax, smallpox, brucellosis, tularemia, botulinum and Venezuelan equine encephalitis.

Checkpoint Charlie

Checkpoint Charlie was the name given by the Western Allies to the best-known Berlin Wall crossing point between East Berlin and West Berlin during the Cold War.

Barbados HARP Gun

The Barbados HARP Gun, was part of Project HARP, short for High Altitude Research Project, which was a joint project of the United States Department of Defense and Canada’s Department of National Defence created with the goal of studying ballistics of re-entry vehicles at low cost; whereas most such projects used expensive and failure-prone rockets, HARP used a non-rocket spacelaunch method based on a very large gun to fire the models to high altitudes and speeds.

The Moroccan Wall

Unlike other notorious barriers in the world, the Moroccan Wall is rarely in the news and is little discussed outside of Africa. The existence of this wall has been buried in the desert, along with the 40-year-old plight of the Sahrawi people the Moroccan Wall has kept divided.

Hadrian’s Wall

Hadrian’s Wall was a defensive fortification in Roman Britain, begun in AD 122 during the rule of emperor Hadrian. In addition to its military role, gates through the wall served as customs posts.

Djémila

Djémila is a mountain village in Algeria, near the northern coast east of Algiers, where some of the best preserved Berbero-Roman ruins in North Africa are found.

The Kelvedon Hatch: Secret Nuclear Bunker

The Kelvedon Hatch Secret Nuclear Bunker at Kelvedon Hatch, in the Borough of Brentwood in the English county of Essex, is a large underground bunker maintained during the cold war as a potential regional government headquarters.

The Norias of Hama

The norias of the ancient Syrian city of Hama are seventeen historic waterwheels located along the Orontes River that date back to the Byzantine Era.

Istra High Voltage Research Center

About 40 miles outside of Moscow, in a secluded forest near a quiet town, sits a maze of towering Tesla Coil looking generators and conduits that seem anything but terrestrial. This lightning machine, the only of its kind, now sits abandoned. Built in the 1970s by the Russia’s military to test aircraft and vehicles’ ability…

Erta Ale

Erta Ale (or Ertale or Irta’ale) is a continuously active basaltic shield volcano in the Afar Region of northeastern Ethiopia. It is situated in the Afar Depression, a badland desert area. Erta Ale is the most active volcano in Ethiopia.

RAF Menwith Hill

Royal Air Force Menwith Hill or more simply RAF Menwith Hill is a Royal Air Force station in England which provides communications and intelligence support services to the United Kingdom and the United States of America. The site contains an extensive satellite ground station and is a communications intercept and missile warning site and has been described as the largest electronic monitoring station in the world.