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.

San Luis Obispo is a city on California’s Central Coast, set between the Santa Lucia Mountains and the Pacific Ocean. Its location in a sheltered valley gives the community a landscape of oak-covered hills, vineyards, creeks, and agricultural land, while the coast is within easy reach to the west. Downtown San Luis Obispo centers on a historic Spanish mission and a compact collection of shops, restaurants, and public spaces.

Nayarit's sub-tropical climate is often compared to Hawaii’s. Temperatures reach ninety degrees during the summer, but at night the onshore breeze from the ocean brings cool air that makes for pleasant sleeping conditions.

Dover, the capital of Delaware, is a charming city that blends rich American history with vibrant modern culture. A must-visit for history buffs is the First State Heritage Park, often called "Delaware's first urban park." This park connects many of Dover's historic landmarks, including Legislative Hall, the state's Capitol building, where you can explore Delaware's political past.

Guam, a vibrant island territory in the Western Pacific, offers travelers more than just sandy beaches and turquoise water. As the largest island in Micronesia, Guam has a dynamic past that’s shaped its present. Evidence of ancient Chamorro settlements can be found at sites like Latte Stone Park, where limestone pillars dating back over a thousand years stand tall.