One of Tanzania’s most interesting places is Ngorongoro, a huge volcanic crater, or caldera.
Probably the largest unbroken caldera in the world, Ngorongoro is 20 miles (32 km) wide and nearly 2,000 feet (600 m) deep.
More than 30,000 animals live within the crater, including black rhinos, buffaloes, elephants, flamingos, leopards, lions, and zebras.
Various hominid species have lived in the Ngorongoro Crater for 3 million years based on fossil evidence found at the Olduvai Gorge.
The first European to have set foot in the crater was Dr. Oscar Baumann in 1892.