Lusaka is the capital and largest city of Zambia. The two main languages spoken in Lusaka are English and Nyanja. It is located in the southern part of the central plateau of the country, at an elevation of 1300 m (4256 ft). It has a population of 3,100,000 (2007 estimate) and is considered one of the fastest growing (in terms of population) cities in Africa. It is a commercial centre as well as centre of government, and the four main highways of Zambia radiate north, south, east and west from… (More on Lusaka)