Population
Population	371 million (2010)
Density of population	51.5/km2  (133.3/sq mi)
Geography
Area	7,207,575 km2 (2,782,860 sq mi)

The Middle East is a transcontinental region that includes Western Asia (Bahrain, Cyprus, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen), Egypt (mostly located in north Africa) and Turkey (partly in Southeast Europe).

Population
Population	ca. 53 million
Density of population	90.9/km2  (235.4/sq mi)
Geography
Area	583,254 km2  (225,196 sq mi)
Highest elevation
Mulhacén	3,478 m (11,411 ft)

The Iberian Peninsula (or Iberia) is a peninsula in the southwest corner of Europe and is principally composed of Spain and Portugal. When we refer to the Iberian Peninsula, we mostly refer to Spain and Portugal but the peninsula also comprise a small area of Southern France, Andorra and Gibraltar (British overseas territory).

Location
Countries	Russia
Cities	Yakutsk
Physical characteristics
Sources
Location	Baikal Mountains (Irkutsk Oblast)
Elevation	1,640 m (5,380 ft)
Mouth – Lena Delta
Location	Arctic Ocean (Laptev Sea)
Elevation	0 m (0 ft)
Length	4,294 km (2,668 mi)
Basin size	2,490,000 km² (960,000 sq mi)
Discharge
Average	16,300 m³/s (575,629 cu ft/s)

The Lena is a Siberian river in Russia, the easternmost of the three great rivers which drain this immense northern region of Asia along a south-north axis (the other 2 being the Ob and the Yenisey). 4,294 km (2,668 mi) long, it is the longest river in Russia, the eleventh longest in the world.

The drainage basin covers approximately 2,490,000 km² (960,000 sq mi). The forest covers 84% ​​of the basin’s surface: larch dominates, but there are also pines and birches (less than 10%).

The regions crossed by the river are among the least populated lands on the planet: the hostile climatic conditions and the remoteness to densely populated regions make life difficult and severely restrict the number of viable activities. The river basin has a total population of 2.3 million inhabitants

Location
Countries	South Africa Botswana Zimbabwe Mozambique
Cities	Xai-Xai (Mozambique)
Physical characteristics
Source
Location	Confluence of the Marico and Crocodile rivers (Botswana/South Africa border)
Elevation	872 m (2,861 ft)
Mouth – Indian Ocean
Location	Gaza Province (Mozambique)
Elevation	0 m (0 ft)
Length	1,700 km (1,100 mi)
Basin size	412,000 km2 (160,000 sq mi)
Discharge
Average	170 m3/s (6,000 cu ft/s)

The Limpopo river is 1,700 km (1,100 mi) long. It is located in southern Africa and it is a major river of the African continent. It is also the second largest river in Africa that drains to the Indian Ocean, after the Zambezi River.

The source of the river is located at the border between Botswana and South Africa, at the confluence of the Marico river and the Crocodile river. From there it serves as a border between South Africa and Botswana. Then it serves as a border between Zimbabwe and South Africa. Finally, it flows through Mozambique to the Indian Ocean.

The Limpopo river basin is about 412,000 km² (160,000 sq mi) and the average discharge measured over a year at its mouth is 170 m³/s (6,000 cu ft/s).

Location
Countries	Zambia Angola Namibia Botswana Zimbabwe Mozambique
Cities	Livingstone (Zambia) Tete (Mozambique)
Physical characteristics
Source
Location	Ikelenge District (Zambia)
Elevation	1,500 m (4,900 ft)
Mouth – Indian Ocean
Location	Zambezia Province and Sofala Province (Mozambique)
Elevation	0 m (0 ft)
Length	2,575 km (1,600 mi)
Basin size	1,351,365 km2 (521,764 sq mi)
Discharge
Average	3,400 m³/s (120,000 cu ft/s)
Minimum	920 m³/s (32,000 cu ft/s)
Maximum	18,600 m³/s (660,000 cu ft/s)

The Zambezi river (also spelled Zambeze and Zambesi) is 2,575 km (1,600 mi) long and it is located in southern Africa. It is Africa’s 4th largest river in length, after the Nile, the Congo and the Niger.

The source of the river is located in Zambia. Then it makes a short foray into Angola and returns to Zambia, where it delimits the borders with Namibia, then for a few hundreds meters with Botswana and finally it flows through Zimbabwe to the Indian Ocean.

Victoria Falls is the most spectacular place on the course of the Zambezi. Shared between Zambia and Zimbabwe, it is considered to be one of the world’s largest waterfalls due to its width of 1,708 m (1.06 mi)  and height 108 m (354 ft).

The hydrographic basin is about 1,351,365 km² (521,764 sq mi) and the rains that feed the river are concentrated between November and March. Its usual flow rate is relatively modest, from 2,000 to 3,000 m³/s

Despite its rugged course, the Zambezi offers long navigable sections.

Location
Countries	Lesotho South Africa Namibia
Cities	Upington
Physical characteristics
Source
Location	Drakensberg (Lesotho)
Elevation	3,300 m (10,927 ft)
Mouth – Atlantic Ocean
Location	Alexander Bay (Namibia / South Africa)
Elevation	0 m (0 ft)
Length	2,300 km (1,430 mi)
Basin size	896,368 km2 (346,090 sq mi)
Discharge
Average	365 m³/s (12,900 cu ft/s)

The Orange river is 2,300 km (1,430 mi) in length and it is the longest river in South Africa. It is also a major river of Africa. The source of the river is located in the Drakensberg mountain in Lesotho and the river flow westwards through South Africa to the Atlantic Ocean.

The river is part of the international borders separating South Africa from Namibia, and South Africa from Lesotho, as well as several provincial borders in South Africa

With the exception of Upington, it does not cross any major city. However the River plays an important role in the South African economy as it provides water for irrigation, as well as hydroelectric power.

Location
Countries	Benin Guinea Mali Niger Nigeria Sierra Leone
Cities	Bamako Lokoja Niamey Onitsha Timbuktu
Physical characteristics
Sources
Location	Loma Mountains (Sierra Leone)
Elevation	490 m (1,608 ft)
Mouth – Atlantic Ocean
Location	Gulf of Guinea (Nigeria)
Elevation	0 m (0 ft)
Length	4,184 km (2,600 mi)
Basin size	2,262,000 km² (873,363 sq mi)
Discharge
Niger Delta
Average	5,589 m³/s (197,400 cu ft/s)
Minimum	500 m³/s (18,000 cu ft/s)
Maximum	27,600 m³/s (970,000 cu ft/s)

The niger River (le fleuve Niger in French and Djoliba in Mandingo) is a Major river of West Africa. The river is 4,184 km (2,600 mi) in length and it is the third-longest river in Africa, after the Nile and the Congo River.

It takes its source between Sierra Leone and Guinea at an altitude of around 800 m in the Loma Mountains to, after a large loop on the borders of the Sahara, flow into the Atlantic Ocean, in Nigeria. Its course crosses the borders of six states (Sierra Leone, Guinea, Mali, Niger, Benin and Nigeria), two of which take their names directly from the river (Niger and Nigeria).

The Niger Delta

The Niger Delta is a very densely populated region with around 31 million people. It is sometimes called the Oil Rivers because it was before a major region of palm oil production. Today the Delta is known to be a petroleum rich region.

Location
Country	Germany
Cities	Stuttgart, Heilbronn, Heidelberg, Mannheim
Physical characteristics
Sources
Location	Black Forest (Germany)
Elevation	706 m (2,316 ft)
Mouth
Location	Rhine (Germany)
Elevation	88 m (289 ft)
Length	362 km (225 mi)
Basin size	13,928 km² (5,378 sq mi)
Discharge
Average in Mannheim	145 m³/s (5,100 cu ft/s)

The Neckar is a river located in the west of Germany, mainly in the state of Baden-Württemberg. The river is about 362 km (225 mi) length and it is a major right tributary of the Rhine. It is navigable for cargo ships via 27 locks for about 200 kilometers (120 mi) and it allows to connect the river port of Stuttgart, Heilbronn and Mannheim to the Rhine.