Tanzania is a must whether you are of the adventurous type or just want to indulge in leisurely activities like diving, snorkeling and hot air-balloon ride at the Serengeti National Park. The heart and soul of Zanzibar, Stone Town hasnít changed much in the past 200 years. Once one of the most important trading ports on the Indian Ocean, Stone Town became a center for wealthy traders, who built grand houses with elaborate wooden doors. Visit Livingstoneís old house, the Palace Museum, the Arab Fort, and the bazaar, and take time to wander along the narrow streets and alleyways to get a feel of this historic town. Whether you prefer standing at a distance and looking up at this massive mound of earth or tickling its back while hiking along its ridges, Mount Kilimanjaro is a site not to be missed. For the adventurous, the climb takes about five days and leads you through thick forests, peaceful grasslands, glaciers, and rocky terrain. A number of national parks play host to Great Rift Valley. The Great Rift Valley runs to just over 5,400 miles and features lakes, volcanoes, and steep gorges. It also attracts a vast array of water wildlife, such as flamingos and pelicans. If you want an authentic African safari experience, head for the Serengeti. It is no doubt one of the most visited of the national parks in Tanzania. The park is enormous, and you can tailor your trip to your wilderness comfort level.