Top 10 ge­og­ra­phy of Africa facts

Liberia was created in 1847 by freed slaves from the United States. They established a government modelled on that of the United States and named its capital city, Monrovia after James Monroe, a prominent supporter of the colonization.

In Mauritania. Today up to 600,000 Mauritanians, or 20% of the population, are still enslaved, mainly the "black Moors" of Haratin people. Though legally abolished in 1981, slavery did not become a crime until 2007, and since then only one person has been prosecuted for owning slaves. The issue of slavery is still powerful theme in the country's political debate.

It doesn't have an outlet to the sea. Discharging to an endorheic basin, the Okavango does not have an outlet to the sea. Instead, it empties into a swamp in the Kalahari Desert, known as the Okavango Delta or Okavango Alluvial Fan.

Sahara. The Richat Structure in Mauritania, also known as the Eye of the Sahara, was interpreted as an asteroid impact structure, but no evidence of shock metamorphism has been found. Today, scientists believe that it is a huge (40 km in diameter) and deeply eroded geologic dome.

Cape Town. The central area of Cape Town is called City Bowl. It is enclosed by near vertical cliffs of 1,000 m (3,300 ft) high Table Mountain, and Devil's Peak and Lion's Head on either side.

Congo is the deepest river in the world, reaching 250 meters of depth in the deepest trench. It is followed by Yangtze (200m) and Danube (178m). The maximum depth of the Amazon River is 80m.

Kinshasa (at the bottom of the photo) is an urban area with a 2013 population of over 9 million. It faces the capital of the neighbouring Republic of Congo, Brazzaville, which can be seen in the distance across the wide Congo River.

Equatorial Guinea. In 1778, the territory of present-day Equatorial Guinea became a Spanish colony called Spanish Guinea. It became an independent nation in 1968.

It is rocky. Most of the Sahara consists of rocky hamada; ergs (large areas covered with sand dunes) form only about 20% of the total area.

Nigeria. 150 million people live in Nigeria and that number is quickly rising. Every fifth African lives in Nigeria.