Nearly two million years ago, Ngorongoro peak towered almost as high as Kilimanjaro. Both these mountains formed the highest peaks in Africa at that time. The Ngorongoro Peak collapsed beneath the volcano to form a caldera, the largest unbroken and unfolded in the world today. Although a geological feature formed by the withdrawal of a molten in this manner is correctly called a caldera, many people traditionally used the term crater, an hence Ngorongoro Caldera is described as a crater, in all records available.
The animals make the Ngorongoro Crater one of Africa’s major attractions. The crater is also known as "The eighth wonder of the world". Around 300,000 animals live in the bottom of the crater, the numbers change with seasons, because some animals migrate towards the Serengeti. The largest group is the wildebeests, but there are plenty of zebras, gazelles and buffaloes. In the forests and the swamped areas one can find hippos, rhinos, elephants, waterbucks, baboons and monkeys. Ngorongoro is one of the few places you are quite sure of spotting a rhino. In the forest s and the swamped areas one can find hippos, rhinos, elephants, waterbucks,