In the Soviet time, Kharkov was one of the most important scientific and research centers of the country.
Kowloon Walled City was a densely populated, largely ungoverned settlement in New Kowloon, Hong Kong.
Balaklava at one time worked at the base; even family members could not visit the town of Balaklava without a good reason and proper identification. The base remained operational after the collapse of the Soviet Union in 1991 until 1993 when the decommissioning process started.
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.
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.
Situated high up in the Balkan Peninsula, at an altitude of 1441m, the Buzludzha monument was built in 1981 – when it served as the symbolic headquarters of Bulgarian communism.
The Colosseum or Coliseum, also known as the Flavian Amphitheatre is an elliptical amphitheatre in the centre of the city of Rome, Italy.
One of the most famous sites in the world, Stonehenge is the remains of a ring of standing stones set within earthworks. It is in the middle of the most dense complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds.
Horseshoe Bend is the name for a horseshoe-shaped meander of the Colorado River located near the town of Page, Arizona, in the United States.
The Great Blue Hole is a large submarine sinkhole off the coast of Belize.
Bokor Hill Station is a French ghost town in Preah Monivong National Park, southern Cambodia.
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.
Te Wairoa, also known as The Buried Village is located close to the shore of Lake Tarawera in New Zealand's North Island.
Quneitra is the largely destroyed and abandoned capital of the Quneitra Governorate in south-western Syria.
Varosha is located within Northern Cyprus. Prior to the Turkish invasion of Cyprus in 1974, it was the modern tourist area of Famagusta. Its inhabitants fled during the invasion, and it has remained abandoned ever since.
Majdanek was a Nazi concentration camp established on the outskirts of the city of Lublin during German occupation of Poland.
The Warsaw concentration camp was an associated group of the German Nazi concentration camps, possibly including an extermination camp, located in German-occupied Warsaw, capital city of Poland.
Janowska was a Nazi German labor, transit and concentration camp established September 1941 in occupied Poland on the outskirts of Lwów (Poland, today Lviv in Ukraine).
Chełmno extermination camp, known by the Germans as the Kulmhof concentration camp, was a Nazi German extermination camp situated 50 kilometres (31 mi) from Łódź, near a small Polish village called Chełmno nad Nerem
Belzec was the first of the Nazi German extermination camps created for the purpose of implementing the Operation Reinhard – which entailed the murder of some 2.2 million Jews, during the Holocaust.