The famous Ngorongoro Crater is a World Heritage Site, since 1979, situated at the eastern edge of the Serengeti in northern Tanzania. The crater is the largest unbroken ancient caldera in the world. Nearly three million years old, the once-volcanic Ngorongoro is now considered ” Africa’s Garden of Eden” – a haven for thousands of wild game, including lions, elephants, wildebeests, zebras, rhinos, Thomson’s gazelles and buffaloes. It is considered by some as the Eighth Natural Wonder of the World.