Tanzania is home to the highest point in Africa as well as to Olduvai Gorge, where some of the oldest human remains have been found. It also contains most of the Serengeti region, which hosts a dazzling array of animal, bird and plant life.
In East Africa, traditional lifestyles are bringing nomads into conflict with states, writes Maina Waruru.
David Martin interviews Zambia's President.
Anuradha Mittal lifts the lid off an alarming, financier-fuelled scramble for Africa.