Ngorongoro Crater in Tanzania
Ngorongoro crater was named a UNESCO World Heritage Site in 1979. It’s also the world’s largest continuous, unfolded volcanic caldera. The crater was formed about three million years ago when a massive volcanic explosion collapsed on itself, resulting in an extended depression about 19 kilometers across. The depression is estimated to be 260 square kilometers of floor area. Ngorongoro crater hosts a diverse variety of flora and fauna, some of which are considered to be exclusive to the area. The area is highly concentrated with African lions.