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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.
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Mount Weather Emergency Operations Center

The Mount Weather Emergency Operations Center is a civilian command facility in the U.S. state of Virginia, used as the center of operations for the Federal Emergency Management Agency (FEMA). Also known as the High Point Special Facility (HPSF), its preferred designation since 1991 is "SF".
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Ise Grand Shrine

Ise Grand Shrine is a Shinto shrine dedicated to goddess Amaterasu-ōmikami, located in the city of Ise in Mie prefecture, Japan.
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Niagara Falls

Niagara Falls is the collective name for three waterfalls that straddle the international border between Canada and the United States; more specifically, between the province of Ontario and the state of New York. They form the southern end of the Niagara Gorge.
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Machu Picchu

Machu Picchu is a 15th-century Inca site located 2,430 metres (7,970 ft) above sea level, in the Cusco Region, Urubamba Province, Machupicchu District in Peru.
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Zhangye Danxia Landform

The Danxia landform refers to various landscapes found in southeast and southwest China that "consist of a red bed characterized by steep cliffs".
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Tianzi Mountains

Tianzi Mountains are located in Zhangjiajie in the Hunan Province of China. Tianzi Mountain provides stunning views of peaks, which rise one after another.
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Salar De Uyuni

Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat located in the Potosí and Oruro departments in southwest Bolivia.
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Derweze Crater

The Derweze Crater, also known as the Door to Hell, is a natural gas field in Derweze (also spelled Darvaze, meaning "gate"), Ahal Province, Turkmenistan. The Door to Hell is noted for its natural gas fire which has been burning continuously since it was lit by Soviet petrochemical scientists in 1971.
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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.
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Lake Hillier

Lake Hillier, is a lake on Middle Island, the largest of the islands and islets that make up the Recherche Archipelago, Western Australia. The most notable feature of the lake is its pink colour.
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The Petra Monastery

Ad Deir is a monumental building carved out of rock in the ancient Jordanian city of Petra.
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Derinkuyu Underground City

Derinkuyu Underground City is an ancient multi-level underground city of the Median Empire in the Derinkuyu district in Nevşehir Province, Turkey.
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Kaymakli Underground City

Kaymaklı Underground City is contained within the citadel of Kaymaklı in the Central Anatolia Region of Turkey.
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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.
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Battersea Power Station

Battersea Power Station is a decommissioned coal-fired power station located on the south bank of the River Thames, in Battersea, an inner-city district of South West London.
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Metro-2

Metro-2 in Moscow, Russia, is the informal name for a purported secret underground metro system which parallels the public Moscow Metro. The system was supposedly built, or at least started, during the time of Joseph Stalin and was codenamed D-6 by the KGB.