This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers. Hop on a cable car, one of the city's most popular attractions, for stunning city-wide views, or cruise down the Rhine to spot some of Koblenz's magnificent fortresses and castles, including the Ehrenbreitstein Fortress and Schloss Stolzenfels.

Located in the heart of Oklahoma, Tulsa offers much for the prospective traveler. Visit its many amusement parks, the zoo, and museums such as the Tulsa Air and Space Center, Mac's Antique Car Museum, Oklahoma Jazz Hall of Fame and the Harmon Science Center.

Laos, a landlocked country in Southeast Asia, is known for its lush landscapes, winding rivers, and rich Buddhist culture. The Mekong River flows along much of the country’s western border, offering both vital transportation routes and scenic vistas. Rolling hills, dense forests, and limestone karsts provide opportunities for hiking, kayaking, and exploring remote villages.

China, the world’s most populous country, stretches across vast landscapes ranging from the towering Himalayas and deserts of the north to fertile river valleys and bustling coastal cities. Its rich history spans thousands of years, marked by dynasties, inventions, and cultural developments that have left a lasting imprint on art, architecture, and philosophy.

Zamora is a compact city in northwestern Spain, set along the Duero River and known for its remarkable concentration of Romanesque architecture.