<Tr> <Th> Area code (s) </Th> <Td> 020 </Td> </Tr> <Tr> <Th> Website </Th> <Td> nairobi.go.ke </Td> </Tr> <P> Nairobi (/ naɪˈroʊbi /; locally (naɪˈroːbi)) is the capital and largest city of Kenya . The name comes from the Maasai phrase Enkare Nairobi, which translates to "cool water", a reference to the Nairobi River which flows through the city . The city proper has a population of 3,138,369, while the metropolitan area has a population of 6,547,547 . The city is popularly referred to as the Green City in the Sun . Nairobi is famous for being the only city in the world that hosts a national park, the Nairobi national Park . </P> <P> Nairobi was founded in 1899 by the colonial authorities in British East Africa, as a rail depot on the Uganda Railway . The town quickly grew to replace Machakos as the capital of Kenya in 1907 . After independence in 1963, Nairobi became the capital of the Republic of Kenya . During Kenya's colonial period, the city became a centre for the colony's coffee, tea and sisal industry . The city lies on the River Athi in the southern part of the country, and has an elevation of 1,795 metres (5,889 ft) above sea level . </P>

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