Özkonak Underground City
Özkonak Underground City is an ancient city built on the northern slopes of Mt. Idis about 14 km northeast of Avanos in Turkey.
Unknown World
Hello, my name is Mike! I am the founder of Unknown World, aiming to bring as much information about our planet to one place for everyone to see!
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.
Tunnel Of Love
The Tunnel of Love enjoys a worldwide reputation. It is known to be one of the nicest sections of railway and one of the most romantic places in the world.
I.M. Cooling Tower
In a small neighborhood known as Monceau-sur-Sambre, within the Belgian town of Charleroi, sits an abandoned power station, the magnificent abandoned cooling tower of which still looms over the town no longer creating electricity, but providing plenty of dystopian vistas.
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.
Grüner See
Grüner See (Green Lake) is a lake in Styria, Austria near the town of Tragöß. The lake is surrounded by the Hochschwab mountains and forests.
Bayantal Abandoned Soviet Airbase
Built in the 1970s, this air base in Mongolia had a 2-mile-long runway and was seen as a frontline for any possible conflict with China.
Leptis Magna
Leptis Magna was a prominent city of the Roman Empire. Its ruins are located in Khoms, Libya, 130 km (81 mi) east of Tripoli.
The Dolerite Columns
The coastline of the southern Tasmania, in Australia, is composed of stunning rock columns that protrude up to 300 meters from the sea level. These rocks are what geologists call dolerites, with its distinct elongated shape and hexagonal columns.
Mar Sem Fim
Mar Sem Fim (“Endless Sea” in English) is a Brazilian yacht that was shipwrecked, sunk and subsequently got frozen in ice in Maxwell Bay of Ardley Cove, Antarctica.
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.
Christ of the Abyss
Christ of the Abyss is a submerged bronze statue of Jesus Christ, the original of which is located in the Mediterranean Sea off San Fruttuoso between Camogli and Portofino on the Italian Riviera.
Waitomo Glowworm Caves
The Waitomo Glowworm Caves attraction is a cave at Waitomo on the North Island of New Zealand, known for its population of glowworms.
Al Qal’a of Beni Hammad
Beni Hammad Fort, also called Al Qal’a of Beni Hammad is a fortified palatine city in Algeria. Now in ruins, in the 11th century, it served as the first capital of the Hammadid dynasty.
The Outer Trial Bank
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.
Civita Di Bagnoregio
Civita Di Bagnoregio was founded by Etruscans over twenty-five hundred years ago but has seen its population dwindle to just fifteen residents over the course of the 20th century.
Hong Kong-Zhuhai-Macau Bridge
A bridge which connects Hong Kong with Macau and Zhuhai, is the world’s longest sea crossing.
Zmiev Ionosphere Research Station
In the Soviet time, Kharkov was one of the most important scientific and research centers of the country.
The Temple of The Flying Monks
That tiny orange figure levitating above this futuristic structure high on the Songshan mountain in rural Henan, China, is indeed a monk.
Checkerboard Forest
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…
