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 | Of the 20 ovens that were built in the beginning of the 1900s, the two tar ovens in Hesselvig Plantage are the only to be restored. They have been brought back to their original state to show the production of charcoal and wood tar and, at the same time, they present a part of the period?s culture history. The ovens were operated from about 1910 and up to the years after the Second World War. T... |  | 10/21/2007 | 272 | 



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 | The Pitch Lake is the largest natural deposit of asphalt in the world, located at La Brea in southwest Trinidad. It has fascinated explorers, scientists and the common folk since its discovery by Sir Walter Raleigh in the year 1595. Raleigh himself found immediate use for the asphalt to caulk his ship. Since then, there have been numerous research investigations into the use and chemical compos... |  | 07/19/2009 | 61 | 



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 | The largest gold mining open pits in Australia. For more information including a virtual tour go to http://www1.superpit.com.au/pages/about_kcgm.asp |  | 08/24/2005 | 656 | 



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 | Gravel pits and little lake of the Corsica south _near Porto-vecchio |  | 12/26/2005 | 588 | 



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 | In 1935 the top of Wrights Hill in Karori, Wellington was chosen as a site for a 9.2" coastal defence battery. Although it was not as large as some overseas fortresses such as that on the Rock of Gibraltar, it was fairly extensive with 2,030 feet of tunnels linking magazines, gun pits, engine room, plotting rooms and more.(For a complete list see the Site Layout)
In March 1942 t... |  | 10/13/2006 | 244 | 



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 | This plane is parked at Sierra Army Depot where the military disposes of obsolete ammunition and bombs by detonating them in open pits. You can see them located south of the runway. |  | 08/23/2005 | 287 | 



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 | Constructed in Wellington’s inner harbour in 1885, Fort Buckley was the first fort capable of defending the capital city’s port from a naval attack.
In the 1870s and 1880s, prompted by growing fears of a Russian invasion, and the increasing realisation that New Zealand could no longer rely solely on either the British navy or the country’s isolation for protection, the New Zeala... |  | 10/13/2006 | 171 | 



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 | World's first runway for extraterrestrial cultures.
The two roundabouts connecting the municipality Houten with the A27 highway and their connecting road have been transformed into a runway for extraterrestrial cultures. The one roundabout is a UFO landing platform, a lighted smooth tar plate decorated with a giant letter U. On the other roundabout a control tower, which signals ... |  | 12/22/2006 | 357 | 



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 | This caldera from a super volcano was formed only 3500 years ago. Aniakchak Caldera formed during an enormous explosive eruption that expelled more than 50 km3 (11.5 cubic miles) of magma. The caldera is 10 km (6.5 miles) in diameter and 500-1,000 m (1/2 mile) deep. Subsequent eruptions formed domes, cinder cones, and explosion pits on the caldera floor.
A supervolcano occurs wh... |  | 09/24/2005 | 628 | 



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 | Rouen-Les-Essarts was a 6.542 km (4.065 mile) race track in Grand-Couronne, near Rouen, France.
From its opening in 1950, Rouen-Les-Essarts was recognized as one of Europe's finest circuits, with modern pits, a wide track, and spectator grandstands. The circuit (which ran on public roads) had a few medium straights, a cobbled hairpin turn (Nouveau Monde) at the southernmost tip, ... |  | 07/05/2007 | 850 | 
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 | Moray is a town in Peru approximately 50 km Northwest of Cuzco near the town of Maras that is noted for a large complex of unusual Inca ruins. These include most notably several enormous terraced circular depressions that were perhaps used to study the effects of different climatic conditions on crops. The depth of the pits (the largest is about 30 m deep) creates a temperature gradient of as m... |  | 06/17/2009 | 149 | 



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 | Matmâta (also spelled Matamata) is a small village in southern Tunisia. Some of the local Berber residents live in traditional underground structures. These structures are created by digging a large pit in the ground. Around the perimeter of this pit are artificial caves used as rooms. Some homes are comprised of multiple pits, connected by trench-like passageways. This type of home was made fa... |  | 07/11/2006 | 164 | 



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