Walls

series of fortifications built along the historical border of China

A wall is a structure and a surface that defines an area; carries a load; provides security, shelter, or soundproofing; or serves a decorative purpose. There are various types of walls, including border barriers between countries, brick walls, defensive walls in fortifications, and retaining walls that hold back dirt, stone, water, or noise. Walls can also be found in buildings, where they support roofs, floors, and ceilings, enclose spaces, and provide shelter and security.

holy site of Judaism in Jerusalem

defensive fortification in Roman Britain

extensive system of coastal fortifications built by Nazi Germany

thumb|300px|Row of trullo houses on Monte Pertica street in Alberobello, [[Bari Province, Apulia, southern Italy]] A trullo (plural, trulli) is a traditional Apulian dry stone hut with a conical roof. Their style of construction is specific to the Itria Valley, in the Murge area of the Italian region of Apulia. Trulli were generally constructed as temporary field shelters and storehouses or as permanent dwellings by small proprietors or agricultural labourers. In the town of Alberobello, in the province of Bari, whole districts contain dense concentrations of trulli. The golden age of trulli w

a separation barrier through West Sahara, extending into Morocco

a wall in Prague, Czech Republic

series of ancient defensive fortifications in northeastern Iran

monument in Geneva, Switzerland

walls in Northern Ireland separating nationalist and unionist neighborhoods

ancient defensive wall in Greece

defensive wall that surrounds the Moscow Kremlin

gum-covered wall in Seattle, Washington, U.S.

defensive wall in Thrace

archaeological site in Israel

cordon

Graffiti-covered wall in Moscow, Russia

defensive wall in Prague

system of defensive walls and ditches located southwest of the Yoruba town of Ijebu Ode

defensive wall in Korean history

ancient earthworks in Ukraine

a wall at the southern end of the Temple Mount

The Great Hedge of India

screen walls featuring nine dragons, a Chinese imperial motif

former fortifications of Berlin

democratic mosaic walls in Hong Kong

church

border barrier being constructed by Pakistan at the Durand Line

Part of Sasanian military strategy and tactic

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