Tanzania’s Ngorongoro crater is thought to have formed about 2.5 million years ago after a volcano cone collapsed inward post eruption. It’s nicknamed “Africa’s Eden” because about 300 animal species live there.

Tanzania’s Ngorongoro crater is thought to have formed about 2.5 million years ago after a volcano cone collapsed inward post eruption. It’s nicknamed “Africa’s Eden” because about 300 animal species live there.