From wikipedia about Cairo
Cairo ( ; القاهرة, literally "The Vanquisher" or "The Conqueror"), is the capital of Egypt
and the largest city in the Muslim World, the Arab world and Africa and the 16th largest metropolitan area in the world. Nicknamed "The City of a Thousand Minarets" for its preponderance of Islamic architecture, Cairo has long been a centre of the region's political and cultural life. Cairo was founded by the Fatimid dynasty in the 10th century AD. ; but the land composing the present-day city was the site of national capitals whose remnants remain visible in parts of Old Cairo. Cairo is also associated with Ancient Egypt
due to its proximity to the ancient cities of Memphis, Giza and Fustat which are nearby to the Great Sphinx and the pyramids of Giza.
Egyptians today often refer to Cairo as Maṣr, the Arabic pronunciation of the name for Egypt
itself, emphasizing the city's continued role in Egyptian influence. Cairo has the oldest and largest film and music industries in the Arab World, as well as the world's second-oldest institution of higher learning, al-Azhar University. Many international media, businesses, and organizations have regional headquarters in the city, and the Arab League has had its headquarters in Cairo for most of its existence.
With a population of 6. 76 million. Adjusted census result, as Helwan governorate was created on 17 April 2008 from a. o. parts of the Cairo governorate. spread over, Cairo is by far the largest city in Egypt
. With an additional ten million inhabitants just outside the city, Cairo resides at the centre of the largest metropolitan area in Africa and the eleventh-largest urban area in the world. Cairo, like many other mega-cities, suffers from high levels of pollution and traffic, but its metro – currently the only one on the African continent – also ranks among the fifteen busiest in the world, with over 700 million passenger rides annually. The economy of Cairo was ranked first in the Middle East, and 43rd globally by Foreign Policy 's 2010 Global Cities Index.