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 Outer Trial Bank is a circular artificial island in the Wash, East Anglia, England. It is one of two islands constructed during the 1970s for a governmental water resources scheme.
A bridge which connects Hong Kong with Macau and Zhuhai, is the world’s longest sea crossing.
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.
The Berlin Wall was a guarded concrete barrier that physically and ideologically divided Berlin from 1961 to 1989.
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.
The research and development carried out in Peenemünde was not only crucial to the course of WWII, but impacted the future of weapons of mass destruction, as well as space travel.
If you pull up Google Maps and look at the forested areas of Western United States, you’ll notice strange checkerboard patterns. These patterns are the result of an agreement made in the mid-1800s, where the US government granted public domain lands to a company called the Oregon and California Railroad to build a rail link…
On the Maryland side of the Potomac River just west of Chesapeake Bay, the largest shipwreck fleet in the Western Hemisphere sits half-sunk and decomposing.
The Kola Superdeep Borehole was a scientific project undertaken by the Soviet Union in the 1970s to better understand the Earth’s crust.