A major port city on the River Scheldt, Antwerp, Belgium, is a cultural, historical, and commercial hub and the country's most populous city. Known as the "diamond capital of the world," Antwerp is renowned for its cut diamonds.

Sète is a lovely port city in southern France, often called the "Venice of Languedoc" because of its many canals. The old port area is full of history and charm, making it a great place to explore. Visitors can stroll along the canals while observing the daily activities of fishermen and admire the array of boats moored along the quays.

Originating as a tiny fishing village in 1038, modern Kehl has become an important link between Germany and France. Rhine River cruises most often use Kehl as their gateway to the much larger and better-known Strasbourg. The savvy traveler, though, might choose to skip the jaunt across the river and enjoy many similar sights, shopping and cuisine as those offered in the teeming French city.

Austria’s Wachau Valley is a scenic stretch of the Danube River between Melk and Krems, known for its terraced vineyards, medieval towns, and a deep sense of history.

Rousse, Bulgaria, often referred to as "Little Vienna," sits gracefully on the banks of the Danube River. Known for its rich history, stunning architecture, and vibrant culture, Rousse offers a glimpse into Bulgaria's past while embracing the future. The city's central square, Svoboda (Freedom) Square, is a great starting point for exploring.