SAH Archipedia uses terms from the Getty Art and Architecture Thesaurus (AAT) to categorize and classify metadata for the entries in the database. For more information on the Getty AAT, click here.

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naoi (chambers)
Principal interior chambers or architectural cores of certain religious buildings or sanctuaries. Among examples are ancient Greek architecture, where the naos was the main sanctuary of a temple; in Byzantine architecture, where the naos was typically the area of a centrally planned church reserved for the liturgy; and in Egyptian architecture and art, where the naos was a shrine housing the god or carried in miniature by the god.

Entrance porches in early basilican churches, and for interior vestibules across the western end of later churches. For narthexlike spaces at the west end of some English and French Romanesque and Gothic churches, often used as chapels, prefer "galilees."

national cemeteries
Burial grounds established and maintained by a nation for the interment of military persons, civilian leaders, and other important national figures. In the United States, an official designation for 139 burial grounds established by the Congress of the United States in 1862 for the interment of armed forces servicemen and women whose last service ended honorably, but also containing the remains of certain civilian leaders.

national forests
Forests under supervision of a national government.These are tracts intended for purposes of conservation of water, plant and wildlife, and public recreation. In the United States, national forests are administered by the Forest Service in the Department of Agriculture.

National Historic Landmarks
Buildings, sites, districts, structures, or objects that possess national cultural significance, according to criteria established by the National Park Service of the United States.

national libraries (buildings)
Buildings housing libraries that are maintained out of federal government funds and serving the nation as a whole.

national monuments
Places of historic, scenic, or scientific interest set aside for preservation, usually by presidential proclamation.

national museums (buildings)
Buildings or spaces for museums that are owned or administered by representatives of a nation, or that specializes in exhibitions from a given nation.

national parks
Areas of special scenic, historical, or scientific importance set aside and maintained by a national government especially for recreation or study.

Native Americans
No description is available for this term.

natural history museums (buildings)
Buildings housing museums containing collections dealing with the properties of natural objects, plants, or animals, such as preserved specimens of birds, mammals, insects, and plants; rocks, minerals, and fossils.

natural landscapes
Designates land and water areas where human effects, if present, are not ecologically significant to the area as a whole. Use to contrast with "cultural landscapes," areas which are significantly altered or modified by human actions.

nature centers
Grounds and complexes designed to educate visitors about animals, plants, weather, and the environment, often including structures for educational activities and outdoor grounds containing native plant communities, wildlife habitats, walking trails, and other facilities.

nature reserves
Areas established for the purpose of preserving distinctive natural communities of plants and animals.

nature trails
Footpaths through nature reserves or other area of countryside for the observation of plants, animals, and natural phenomena, frequently marked by posted signs and discussed in associated descriptive literature.

naval air bases
Land-based military airbases for the military aviation division of the navy of a nation.

naval bases
Area naval commands normally including a seaport, which integrates shore activities that provide local logistic services to the fleet.

naval museums (buildings)
Buildings housing museums dealing with navies, warships, or ships in general; distinct from "maritime museums," which deal with the sea in general, navigation, or shipping.

naval shipyards
Naval bases that build, repair, dock, or convert warships, and are manned by civilian engineers and workers and administered by engineer duty officers.

Refers to the main central part of an interior divided into a high center with lower side portions divided by columns or piers, usually but not always in a church. Use also for the main part of a church without aisles but with a distinct chancel.

needle spires
Thin spires rising from the center of a tower roof, well inside a parapet, protecting a pathway upon which scaffolding could be erected for repairs.

neighborhood parks
Parks set aside for the habitual play of residents of urban neighborhoods; usually smaller and with fewer activities than "community parks."

Residential areas within a larger town or city, more or less cohered into integral communities having their own shops and other facilities, and other distinguishing characteristics.

neonatal intensive care units
Intensive care units designed for newborn infants under the age of one month.

new towns (modern settlements)
New, essentially self-sufficient settlements, usually modest in size, which are built in a previously undeveloped area. Their purpose is typically to provide residential, commercial, industrial, educational, recreational, and public facilities for larger urban areas. The term is often reserved for such settlements sponsored or approved by a government and created in a rural or undeveloped area to absorb overspill population from a nearby large city. Examples of new towns are the planned communities of the New Towns Movement in the United Kingdom after World War II, for which communities were purposefully planned, developed, and built to alleviate overcrowding in large cities.

Stands or stalls for the sale of newspapers, magazines, and other printed material.

Establishments offering evening entertainment, such as floor shows or comedy acts, providing space and music for dancing, and usually serving liquor and meals.

novelty shops
Stores selling articles that are chiefly decorative or amusing, whose appeal is often transitory, often relying for their appeal on the newness of their design.

novitiates (dwellings)
Buildings within a religious community complex in which novices are housed and trained during their period of probation.

nuclear power plants
Facilities that create and distribute power obtained from nuclear reactors, which initiate and control a self-sustaining series of nuclear fissions.

nuclear reactors
Apparatuses in which a chain reaction of fissionable material is initiated and controlled as for generation of heat for power or for the production of plutonium from uranium.

nuclear test sites
Locations where nuclear devices are experimentally exploded.

nurseries (horticulture)
Horticultural facilities where trees, shrubs, and plants are grown for sale and transplanting elsewhere or for use as stocks for budding or grafting.

nursery schools (buildings)
Buildings that house schools for children too young for kindergarten and compulsory education, but old enough to take part in certain educational and social activities.

nurses' residences
Group dwellings on or near hospital grounds providing dormitorylike housing for nurses or nursing students.

nurses' stations
Control centers for on-call nursing staff in health facilities.

nursing homes
Long-term residential care facilities providing as their primary and predominant function round-the-clock skilled nursing care for the elderly or chronically ill. Distinguished from "rest homes" which have less emphasis on comprehensive nursing care and are residential, rather than institutional, environments.