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Concept
Underground living
Summary
Underground living refers to living below the ground's surface, whether in natural or manmade caves or structures. Underground dwellings are an alternative to above-ground dwellings for some home seekers, including those who are looking to minimize impact on the environment. Factories and office buildings can benefit from underground facilities for many of the same reasons as underground dwellings such as noise abatement, energy use, and security.
Some advantages of underground houses include resistance to severe weather, quiet living space, an unobtrusive presence in the surrounding landscape, and a nearly constant interior temperature due to the natural insulating properties of the surrounding earth. One appeal is the energy efficiency and environmental friendliness of underground dwellings. However, underground living does have certain disadvantages, such as the potential for flooding, which in some cases may require special pumping systems to be installed.
It is the preferred mode of housing to communities in such extreme environments as Italy's Sassi di Matera, Australia's Coober Pedy, Berber caves as those in Matmâta, Tunisia, and even Amundsen–Scott South Pole Station.
Often, underground living structures are not entirely underground; typically, they can be exposed on one side when built into a hill. This exposure can significantly improve interior lighting, although at the expense of greater exposure to the elements.
There is only written documentation of Scythian and German subterranean dwellings. Remnants have been found in Switzerland, Mecklenburg and southern Bavaria, "They had a round shape with a kettle-like widening at the bottom, from eleven to fifteen metres in diameter, and from two to four metres in depth".
In the final stage of World War II, the Nazis relocated entire armaments factories underground, as the Allies' air supremacy made surface structures vulnerable to daylight strategic bombing raids.
In parts of rural Australia, subterranean houses are built in a manner similar to prairie dog holes.
Official source
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