The Gambia, at 10,380 square kilometers, is the smallest country on the continent of Africa.
The Seychelles, an island nation near Madagascar, at 451 square kilometers, is the smallest country in Africa, if you include nearby islands.
Porto-Novo is the capital and Cotonou is the government seat.
Lomé, is the capital of Togo, with estimated population of 737,751, is the capital and largest city. Located on the Gulf of Guinea, Lomé is the country's administrative and industrial center and its chief port.
The capital city of Burkina Faso is Ouagadougou.
Nigeria Depends on the area you consider as 'West Africa'. Mauritania is marginally bigger than Nigeria, and if you are prepared to consider non-coastal countries, Mali is even bigger. Look at a maqp of Africa and find out what you consider as 'West Africa'.
Three Gorges Dam on the Yangtze River, by the town of Sandouping, China has created one of the world's largest reservoirs. The Three Gorges Reservoir has a total capacity of 31,900,000-acre-feet.
Gulf of Guinea
The capital of Nigeria is Abuja. It originally was Lagos.
Including islands, Cape Verde is the westernmost country in Africa. On the mainland, Senegal is the westernmost nation.
Egypt is a country not a capital city. The capital city of egypt is Cairo.
In Africa, Egypt has the largest phosphate reserves. But, the United States (primarily Florida) has the largest reserves in the world.