35. Tanz: Serengeti + Ngorongoro Crater

At 5,900 feet above sea level, the Ngorongoro Crater stands 610 feet deep and boasts 100 square miles of wetlands, grasslands and forest. Its the world's largest intact, inactive volcanic caldera in the world, and one of the seven wonders of Africa.

The crater is estimated to have formed 2 - 2.5 million years ago when the volcano's cone imploded after a massive eruption. Its mineral rich volcanic soil generates lush grass for grazing herbivores, which in turn attracts predators. N is known to have the highest population density of lions in Africa.

We did a game drive thru the crater on our way back to Arusha after Serengeti.Read more