Ngorongoro Crater, Caldera in Arusha Region, Tanzania
Ngorongoro Crater is one of the world's largest inactive and unfilled calderas.
Created two to three million years ago when a large volcano exploded and collapsed on itself.
The Maasai people have been inhabiting Ngorongoro for 200 years and has important cultural significance.
It's a wildlife hotspot with a rich ecosystem and easy visibility of wild animals all year round.
Combines a natural reserve with human habitation, a rare global phenomena.
Location: Arusha Region
Elevation above the sea: 1,700 m
Source: Wikimedia