Cairo is the capital of Egypt which is the largest city in Africa and most populous. Cairo also as a center of Islamic science. The world's oldest university of Al Azhar in Cairo as well. Building homes, buildings are very thick with ancient Islamic architecture. Cairo is the nickname for the city of a thousand minarets. Because of the mosques in Cairo have a minimum of two towers.
Raya Cairo area has a population of around 16 million inhabitants. This city is the only city in Africa which has a metro system. Islamic Cairo, one of the areas in Cairo, is a world heritage protected by UNESCO began in 1979.