Passau sits on the confluence of the Danube, the Inn and the Ilz, so it is fitting that it is known as "the Dreiflüssestadt", which means the “City of Three Rivers.” The historical center offers a cathedral, churches and museums to explore, and the embankment is perfect for a romantic stroll.

Ningbo is right on the East China Sea, south of Shanghai. Many scholars believe this was the cradle of Chinese civilization. Study the stone tablets and thousands of rare Ming Dynasty books in China's oldest and most renowned library. See the Asoka Temple believed to be one of the most important Buddhist temples in China or visit Tian Tong Temple, one of the largest and most scenic. For shopping, try the colorful and busy Gao Tang Free Market, the largest in the city.

Austria is located just east of Switzerland; northeast of Italy. The foremost attraction is skiing or hiking the Alps--equally breathtaking whether you're among its glorious peaks or at ground level. Visit the capital of Vienna, with its original coffee houses and the opera; or take a country drive and visit its charming villages.

AlUla is an oasis region in northwestern Saudi Arabia, surrounded by sandstone mountains, desert valleys, and cultivated palm groves. Its landscape has been shaped by the presence of water, with the AlUla oasis supporting date palms, citrus trees, and other crops within an otherwise arid setting. The area is particularly known for its combination of archaeological sites and unusual rock formations.

From the rugged highlands and volcanic plateaus to the lowland deserts and the Great Rift Valley, Ethiopia's terrain is as varied as it is dramatic.