Chinguetti (Berber languages: Cengiṭ, Arabic: شنقيط‎, translit. Šenqīṭ) is a ksar or a Berber medieval trading center in northern Mauritania, located on the Adrar Plateau east of Atar.

Founded in the 13th century as the center of several trans-Saharan trade routes, this small city continues to attract a handful of visitors who admire its spare architecture, scenery and ancient libraries.

The indigenous Berber Saharan architecture of older sectors of the city features houses constructed of reddish dry-stone and mud-brick techniques, with flat roofs timbered from palms. Many of the older houses feature hand-hewn doors cut from massive ancient acacia trees, which have long disappeared from the surrounding area. Many homes include courtyards or patios that crowd along narrow streets leading to the central mosque.

Notable buildings in the town include The Friday Mosque of Chinguetti, an ancient structure of dry-stone construction, featuring a square minaret capped with five ostrich egg finials; the former French Foreign Legion fortress; and a tall watertower. The old quarter of the Chinguetti has five important manuscript libraries of scientific and Qur'anic texts, with many dating from the later Middle Ages.

The city was founded in 777, and by the 11th century had become a trading center for a confederation of Berber tribes known as the Iẓnagen Confederation. It was at the crossroads of trade routes. Soon after settling Chinguetti, the Sanhadja first interacted with and eventually melded with the Almoravids, who controlled an empire stretching from present-day Senegal to southern Spain (they called the latter al-Andalus). The city's stark unadorned architecture reflects the strict religious beliefs of the Almoravids, who spread the Malikite rite of Sunni Islam throughout the Western Maghreb.

After two centuries of decline, the city was effectively re-founded in the 13th century as a fortified cross-Saharan caravan trading center connecting the Mediterranean with Sub-Saharan Africa. Although the walls of the original fortification disappeared centuries ago, many of the buildings in the old section of the city date from this period.

For centuries the city was a principal gathering place for pilgrims of the Maghreb to gather on the way to Mecca. It became known as a holy city in its own right, especially for pilgrims unable to make the long journey to the Arab Peninsula. It also became a center of Islamic religious and scientific scholarship in West Africa. In addition to religious training, the schools of Chinguetti taught students rhetoric, law, astronomy, mathematics, and medicine. For many centuries all of Mauritania was popularly known in the Arab world as Bilad Shinqit, "the land of Chinguetti." Chinguetti is locally said to be the seventh-most holy city of Islam, but there is no recognition of this claim outside of West Africa. The city remains one of the world's most important historical sites both in terms of the history of Islam and the history of West Africa.

In 1996, UNESCO designated Chinguetti, along with the cities of Ouadane, Tichitt and Oualata, also in the dunes area, as a World Heritage Site.

Read more: https://en.wikipedia.org/wiki/Chinguetti