Mt. Kilimanjaro

Located at the northeastern tip of Tanzania stands Mt. Kilimanjaro -- at 19,340 feet, the tallest free-standing mountain in the world, and the highest point on the African continent. Many climbing opportunities are available, including five, seven, and eight-day treks, which take you through the mists of equatorial jungle to the snow-capped "Roof of Africa," and its breathtaking views.

Serengeti National Park

A true African adventure! Serengeti means "endless plains." And no wonder -- the park covers 23,000 square miles, reaching up to the Kenyan border, and extending almost to Lake Victoria. One of the world's largest wildlife sanctuaries, an estimated 3 million large mammals roam the plains. The Serengeti is known for an incredible array of wildlife. In May through early June, you can witness the annual migration of millions of zebras and wildebeests. Other wildlife abounds: Lion, cheetah, leopard, giraffe, rhinoceros, elephant, hippopotamus, gazelle, impala, hyena, jackal, warthog, baboon, vervet and colobus monkey, mongoose, crocodiles and more. It is also home to nearly 500 species of birds.

Ngorongoro Conservation Area

Located between the Serengeti and Lake Manyara, it is home to what is often described as the "eighth wonder of the world," Ngorongoro Crater. The crater is actually a collapsed volcano, and is the largest unbroken caldera in the world. The 102 square mile area is one of the most spectacular wildlife sanctuaries in the world. The view from the rim of the crater is stunning. And a steep descent of about 2,000 feet brings you to the floor of the crater -- into the midst an incredible concentration of wildlife: lion, cheetah, leopard, zebra, wildebeest, elephant, hyena, warthog, buffalo, and one of the last -- and best -- places to see the endangered black rhinoceros.

Olduvai Gorge

Located within the Ngorongoro Conservation Area lies the famous Olduvai Gorge, where anthropologists Mary and Louis Leakey discovered the fossil remains of some of humanity's earliest ancestors. A fascinating museum is located near the site.

Zanzibar

Known as the "Island Of Spices," Zanzibar lies off the Tanzanian coast in the Indian Ocean. Zanzibar has a long and fascinating history. At one time it was the commercial center of East Africa, with settlers including Africans, Arabs, Chinese, Assyrians, Malays, and Indians. It was also the last place to abolish the slave trade. Today, it combines historical Islamic ruins; miles of white, sandy beaches and coves fringed with palms; a wonderful central market; and, of course, the spice plantations -- clove, cinnamon, nutmeg, vanilla, cardamom, and more. The ocean's warm, clear waters are excellent for snorkeling, diving, sailing, watersports, and deep-sea fishing.