The annual great migration of millions of wildebeest, zebra and other animals across the Serengeti Plains is one of nature's most remarkable events.
Impressive inhabitants —
Lions are fearsome crowd-pleasers for safari goers. The world's lion population is dwindling, and the relationship between the big cats and the humans making their livelihoods on the plains is tense.
Vast landscapes —
The Ngorongoro Crater, a UNESCO World Heritage Site, is the world's largest unbroken caldera.
Proud locals —
Maasai men prepare to greet Camilla, Duchess of Cornwall, and Prince Charles as they visit Majengo Maasai Boma in 2011 in Arusha, Tanzania. The lifestyle of the Maasai, one of the last warrior tribes in the world, revolves around cattle herding.
Chris Jackson/Getty Images
Spice Islands —
Many layers of history are visible in Stone Town on the island of Zanzibar. UNESCO calls the town "an outstanding material manifestation of cultural fusion and harmonization" shaped by centuries of intense sea trade between Asia and Africa.
A lesser-known island retreat —
Neighboring Pemba Island is also part of the Zanzibar Archipelago. It has been called "the Green Island" for its lush vegetation.
Africa's summit —
Mount Kilimanjaro is Africa's highest peak and the tallest freestanding mountain in the world.