As the second largest city in Serbia, Novi Sad is not only an important industrial and financial center, but a vibrant, friendly destination with a liberal vibe and plenty of attractions for visitors. Novi Sad is also the home of EXIT festival, one of the best annual music events in Europe.

The River Nile, most often associated with Egypt and its ancient civilizations, actually flows through eight other countries including Uganda, Ethiopia, Sudan, and Kenya. It is formed by two major tributaries, the White Nile and Blue Nile, and is considered by many to be the longest river in the world when measured from its source waters in Rwanda and Burundi.

The second largest city in Peru, Arequipa is called the "white city" because of the white volcano stone with which much of the city was built. Here you'll see charming colonial buildings, a 400 year old convent and gilded churches.

Welcome to Nairobi, safari capital and the largest city in Kenya. At one time a simple hydration spot for the Maasai, this high-energy East African city now strikes a balance between the cosmopolitan and the natural. In its adjacent Nairobi National Park, visitors will see lions, zebras, giraffes and rare black rhinos.

Mongolia's capital and largest city Ulaanbaater, includes many points of interest: Mongolia's State Archives and State Public Library, which contains about 3 million volumes; the State Central Museum, which contains art treasures and antiquities; the Fine Arts Museum, with a collection of painting and sculpture; two museums with items from the revolutionary movement; and the Museum of Religion, with a collection of Lamaist relics.