Addis Ababa is the capital and largest city of Ethiopia. With an estimated population of 2,739,551 inhabitants as of the 2007 census, it is the eleventh-largest city in Africa. At an elevation of 2,355 metres (7,726 ft), it is the fourth highest capital city in the world and the highest capital in Africa. Addis Ababa is a highly developed and important cultural, artistic, financial and administrative center of Ethiopia.
Summary from Wikipedia.