Africa

Africa is a Continent not a Country 

Africa is the world's second-largest and second most-populous continent, after Asia. At about 30,221,532 km² (11,668,545 sq mi) including adjacent islands, it covers 6% of the Earth's total surface area, and 20.4% of the total land area. With more than 900 million people (as of 2005) in 61 territories, it accounts for about 14% of the world's human population. The continent is surrounded by the Mediterranean Sea to the north, the Suez Canal and the Red Sea to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west.

Area: about 30 244 000 km² (11 700 000 mi²) including its adjacent islands it covers about 20 percent of Earth's total land area.
Coastline: 30,539 km 18,976 miles

Population: 900 million human inhabitants, about 20 percent of the world's population.
Highest Point: Mount Kilimanjaro - Uhuru Peak on the volcano Kibo, 5,895 m (19 340 ft) in Tanzania.
Largest Lake: Lake Victoria or Victoria Nyanza; 68 870 sq. km.
Longest River: Nile; 6 695 km.
Languages of Africa: about thousand languages classified in four major language families:
Afro-Asiatic (e.g. Berber lang), Nilo-Saharan, Niger-Congo (Bantu), and Khoi-San.

Comoros

Geographical Facts

Africa, second-largest of the Earth's seven continents -
Largest Country
Sudan, Republic of, republic in north-eastern Africa, the largest country of the African continent. Sudan has a total area of 2,505,800 sq km (967,490 sq mi).
Smallest Country
The smallest African country is The Seychelles covering an area of 453 sq km but Gambia is the smallest of the mainland African states, covering an area of 11,300 sq km (4,363 sq mi).
Largest City
Egypt's capital city, Cairo, is the largest city in Africa with an estimated 9.2 million population
Highest Point
Mount Kilimanjaro - Uhuru Point - (5895m/19,340 ft) in Tanzania
Lowest Point
the lowest is Lake 'Asal (153 m/502 ft below sea level) in Djibouti
Northernmost tip
is Cape Blanc (Ra's al Abyad;) in Tunisia
Southernmost tip
is Cape Agulhas in South Africa
Largest Lake
Lake Victoria is the largest lake in Africa and the is the world's second-largest freshwater lake - covering an area of 69,490 sq km (26,830 sq mi) and lies 1,130 m (3,720 ft) above sea level. Its greatest known depth is 82 m (270 ft).
Deepest Lake
Lake Tanganyika is the deepest lake in Africa reaching at its greatest depth is 1,436 m (4,710 ft), making it the second deepest freshwater lake in the world after Lake Baikal.
Longest River
The River Nile drains north-eastern Africa, and, at 6,650 km (4,132 miles), is the longest river in Africa and in the world. It is formed from the Blue Nile, which originates at Lake Tana in Ethiopia, and the White Nile, which originates at Lake Victoria.
The Great Africa Rift Valley
The Rift Valley extends more than 4,830 km (3,000 mi) from Syria in south-western Asia to Mozambique in south-eastern Africa. The width of the valley ranges from a few miles to more than 160 km (100 mi). In eastern Africa, the valley splits into two branches: the Eastern Rift and the Western Rift
The fault in which the Rift sits is still moving: the western side of the rift is pulling away from the eastern ridge at about 6 mm per year, while in the south it is moving together at a rate of 2 mm per year.
Lake Malawi
Lake Malawi contains the largest number of fish species of any lake in the world, probably over 500 from ten families. Particularly noteworthy are the Cichlidae, of which all but five of over 400 species are endemic to Lake Malawi. The lake contains 30% of all known cichlid species. Of particular interest is the 'mbuna' rock fish.
Namib Desert
The Namib is the world's oldest desert, and the only desert in Africa inhabited by elephant, rhino, giraffe and lion
Namibia - Fish River Canyon
The Fish River canyon is the second largest canyon in the world.
The Sahara Desert
The Sahara Desert  is expanding southwards at an average of 0.8 km (½ mile) a month

sources: CIA World Fact Book, United Nations, U.S. Department of State