Sitting where the Phoenician colony of Hadrumetum once stood nearly 3,000 years ago, the modern-day Sousse is a resort destination, especially popular with Europeans. Sometimes called "the Pearl of the Sahel" (referring to the central section of Tunisia's eastern shoreline), Sousse is prized for its excellent beaches. Arab-Islamic since the 7th century AD, the city has many fascinating attractions, like the 9th-century Great Mosque, and its medina is a UNESCO World Heritage Site.

Maybe your local zoo has lions, leopards, zebras or elephants. Maybe they even have wildebeest. But we bet they don't have 1.3 million wildebeest—never mind 1.3 million wildebeest in migration, with predators in hot pursuit. It's one of the most awesome sights in nature, and you can see it at Masai Mara in southwestern Kenya.

The Maasai call the plains of Serengeti National Park "the place where the land moves on forever"—so prepare to be astonished by its vastness. And here, you can witness the famous Serengeti annual migration, the largest and longest overland migration on earth.

The largest game reserve in South Africa, Kruger National Park is basically a synonym for the word "safari." Home to over 500 bird species, 100 reptiles, nearly 150 mammals, multiple archaeological sites, and a stunningly diversity of trees and flowers, Kruger is the country’s flagship national park. Adventurers can explore the park in a 4x4, take a bush walk or fly above in a hot-air balloon.