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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wharves
Structures built generally parallel to the shoreline so that vessels may moor alongside to receive or discharge cargo or passengers. For similar loading and unloading places built to extend from the shoreline out over water, use "piers (marine landings)"; if such places are artificial solid banks or shoreline extensions built parallel to the shoreline, use "quays."

wheelhouses (roundhouses)
Sheds for railway engines built around a central turntable, and often circular or semicircular in plan.

widows' walks
Railed, unroofed platforms surmounting the roofs of American houses offering a view, especially of the sea; for rooftop outlooks that are enclosed, use "belvederes"; for rooftop structures that are usually ornamental, use "cupolas."

wigwams
Houses of the Native Americans of the region of the Great Lakes and eastward having typically an arched top and consisting of a framework of poles overlaid with bark, rush mats, or hides.

wild animal parks
No description is available for this term.

wilderness
Designates wild and uncultivated regions that have been left untouched in a natural state by humans, with no human control or interference; distinct from "nature reserves" in which plant and animal communities are protected and controlled; distinct from "wilderness areas" which are lands where natural growth is protected by legislation, and recreation and industrial use are restricted.

wilderness areas
Areas of land whose natural growth is protected by legislation and where recreation and industrial use are restricted; for wild and uncultivated regions left untouched in a natural state with no human control or interference, use "wilderness."

wildlife refuges
Areas set aside for feeding, roosting, nesting, breeding, and habitat protection for species of animals and plants native to the region; also offering protection from hunting, and sometimes protection from predation and competition.

windbreaks
Fences, walls, or dense plantings of trees provided, usually in open areas, as protection against wind.

windmills
Buildings or devices with sails or vanes that turn in the wind and generate power. The devices operate by means of a rotating shaft on which sails are mounted or placed at an angle so that the force of wind against them causes rotation, which in turn produced energy. Windmills were historically used chiefly in flat districts for operating a mill to grind grain or pump water; the older and most characteristic European form consists of a conical mill-house with a dome or cap supporting four sails. Modern devices tap the wind to produce electricity by using a disk of sails mounted on a framework.

window heads
The upper horizontal cross members or decorative elements of window frames.

windowless buildings
Buildings having no windows.

wine cellars
Rooms in which wine is stored, whether below ground level or not.

wineries
Establishments for making wine, which is the fermented juice of the grape used as a beverage.

wings (building divisions)
Subsidiary parts of buildings extending out from the main portion.

wings (theater spaces)
The areas offstage and to the side of the acting area.

winter gardens
Use primarily for large greenhouses with plants and facilities for public entertainment, popular in the 19th century; may also be used for areas planted for winter display.

winter resorts
Facilities usually located on a mountain or large hill and designed for winter sports, typically skiing, snow boarding, and other such activities.

woodlands (plant communities)
Distinct vegetation landscapes dominated by trees, often used for grazing or hunting but not for timber or cultivation; for tracts of land with trees often acting as barriers or boundaries but otherwise minimally utilized, use "woods;" for timber-producing land or unmanaged wilderness of dense growth, use "forests (cultural landscapes)."

woodsheds
Sheds, usually detached outbuildings, in which wood, especially firewood, is stored.

woolen mills
Facilities that spin and weave wool into fabric.

workhouses (buildings)
Buildings that housed places of confinement and labor for paupers, vagrants, and the disabled or elderly poor from the 17th through 19th century in Europe and America. For buildings housing similar institutions intended to provide punishment and reformation of the criminal, use "houses of correction (buildings)." For welfare buildings providing charitable care for the poor, use "almshouses (buildings)."

workshops (work spaces)
Refers to public or private spaces set aside for manual or light industrial work. It may be used to refer to spaces in which fine art was created, particularly regarding art dating prior to the 16th century. It may also refer to spaces in which woodworkers, furniture makers, pottery makers, glass makers, and other craftspeople work. In the most general sense, it refers to spaces where goods of any type are made, prepared for sale, or sold. In modern usage, the term "studios" is generally used to refer to spaces for creating fine art dating from the 16th century to the present.

World Heritage Sites
Entities, including a site, building, city, complex, desert, forest, island, lake, monument, or mountain designated by the United Nations Educational, Scientific and Cultural Organization (UNESCO) as exceptional examples of cultural values or natural phenomena.

world trade centers
Mixed-use buildings or groups of buildings providing facilities for public and private organizations involved in international trade.

world's fairs
International expositions that feature exhibits on arts, agriculture, science, and industry, with participants from around the world.

yacht clubs (buliding complexes)
Seaside, lakeshore, or riverside facilities for the congregation of members of a yacht club, which is a group of people involved with the sport of sailing and yachting. Yacht clubs typically include a marina, a delimited section of the beach, safe offshore anchorages, and buildings for the meeting and refreshment of the members. Seaside, lakeshore, or riverside facilities for the congregation of members of a yacht club, which is a group of people involved with the sport of sailing and yachting. Yacht clubs typically include a marina, a delimited section of the beach, safe offshore anchorages, and buildings for the meeting and refreshment of the members.

yards (open spaces)
Comparatively small open areas attached to a house or other building or enclosed by it, and open to the sky; sometimes walled.

YMCA
No description is available for this term.

youth centers
Premises that house facilities for the spare-time activities of young people, often those belonging to a given social club for youths.

ziggurats
Ancient Mesopotamian temple towers in the form of stepped pyramids.

zoos (built complexes)
Gardens, parks, or other grounds in which wild animals, and sometimes also domestic animals, are kept for public exhibition, usually in enclosures. Animals in zoos can generally be given more intensive care than is possible in nature reserves or wildlife refuges. Marine invertebrates, fish, and sometimes marine mammals, are often kept in separate aquariums.

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