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.
Riese is the code name for a construction project of Nazi Germany in 1943–1945, consisting of seven underground structures located in the Owl Mountains and Ksiaz Castle.
The Vajont Dam (or Vaiont Dam) is a disused dam in Italy, which was completed in 1959. On 9 October 1963, during initial filling, a massive landslide caused a man-made megatsunami in the lake in which 50 million cubic metres of water overtopped the dam in a wave 250 metres (820 ft) high, leading to 1,910 deaths and the complete destruction of several villages and towns.
SS Richard Montgomery was an American Liberty ship built during World War II, one of the 2,710 used to carry cargo during the war.
Al-Khazneh is one of the most elaborate temples in the ancient Arab Nabatean Kingdom city of Petra. As with most of the other buildings in this ancient town, including the Monastery (Arabic: Ad Deir), this structure was carved out of a sandstone rock face. The structure is believed to have been the mausoleum of the…
The park was built next to Mount Fuji near Aokigahara – Japan’s famous ‘suicide forest’ – and close to the former headquarters of Aum Shinrikyo, the religious cult responsible for 13 deaths in the Tokyo sarin nerve gas attack of 1995.
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 Post Office Railway, known as Mail Rail since 1987, is a driverless underground railway that was built to move mail between sorting offices.
Some 250 million years ago, a part of Ukraine was under a shallow ocean. When the ocean dried up, it left behind a huge deposit of salt.
In the 1930s, a small town named Agloe suddenly began appearing on the maps of New York. It was positioned near an unmarked dirt road that led from Roscoe to Rockland, and near to Beaverkill.
Kupari was once a hugely popular holiday resort, until it was damaged during the Croatian War of Independence.
Danish artist Thomas Dambo has been building stuff using trash and recycled materials since an early age, starting with smaller sculptures such as birdhouses and furniture to bigger pieces such as the six “Forgotten Giants” he recently installed around Copenhagen.
The National Monument of Scotland, on Calton Hill in Edinburgh, is Scotland’s national memorial to the Scottish soldiers and sailors who died fighting in the Napoleonic Wars.
Located just over eight hundred kilometers away from the North Pole, the community of Alert, on the northeastern tip of Ellesmere Island, in Nunavut, Canada, is the most northerly permanent settlement in the world.
In the remote Yakutia region of Siberia, more than a hundred kilometers inside the Arctic Circle, lies the small town of Verkhoyansk. Winter temperature here regularly drops to minus fifty degree Celsius. It’s so cold that “no one can stay outside for more than 15 minutes”. The only way to protect oneself from the bitter cold is to wrap themselves up in skins and furs of animals, and keep moving.
The spiral structure in Venezuela was conceived in the 1950s as a monument to a nation’s confidence – but now its crumbling shell houses a notorious political prison.
Located near the village of Artashavan, close to the highway, in Armenia, stands 39 giant carved Armenian letters dedicated to the language its speakers take pride in.
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.
Antarctic Basecamp, 1911 Tinned ham and whisky are stacked on the shelves beside jars of olives and anchovy paste, awaiting the return of the man who put them there. However, he never would step back into this cosy living space and enjoy the food he had left behind. His name was Robert Falcon Scott –…